CN113126527A - Quantum measurement and control system - Google Patents
Quantum measurement and control system Download PDFInfo
- Publication number
- CN113126527A CN113126527A CN201911397990.6A CN201911397990A CN113126527A CN 113126527 A CN113126527 A CN 113126527A CN 201911397990 A CN201911397990 A CN 201911397990A CN 113126527 A CN113126527 A CN 113126527A
- Authority
- CN
- China
- Prior art keywords
- signal
- module
- control
- quantum
- transceiver module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 22
- 239000013307 optical fiber Substances 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 4
- 238000003491 array Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21137—Analog to digital conversion, ADC, DAC
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Optical Communication System (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The invention discloses a quantum measurement and control system, which comprises quantum equipment and a synchronization module; the synchronization module includes: the clock module is used for outputting a clock signal; the first control module is used for generating a first trigger signal and a first control signal and carrying out delay compensation on the clock signal according to delay information of a path between the synchronization module and the quantum equipment to obtain a delay compensation clock signal; and the first transceiver module is used for transmitting the first trigger signal, the first control signal and the delay compensation clock signal to the quantum equipment. According to the quantum measurement and control system provided by the embodiment of the invention, the synchronization of the clock signal, the trigger signal and the control signal can be effectively ensured.
Description
Technical Field
The invention relates to the technical field of quantum computation, in particular to a quantum measurement and control system.
Background
In the field of quantum computing, particularly based on low-temperature superconducting quantum computing, a plurality of quantum bits need to be controlled, a plurality of paths of random Waveform generators (AWG for short), a data acquisition system and the like need to work synchronously, and the system is required to provide quick feedback so as to control and correct the state of the quantum bits. Therefore, the quantum measurement and control system must maintain clock synchronization and a low-delay feedback loop between the devices. Wherein the synchronization system requires: the method comprises clock synchronization, triggering and control synchronization among all devices and synchronization of timestamps generated by all boards.
However, in the quantum measurement and control products in the related art, the synchronization mode mainly adopts a chassis back plate, the expansibility of the chassis is limited by slots of the chassis in the form of the chassis, and the clock of the back plate is not fast; the other measurement and control products only carry out clock synchronization, and the synchronization cannot be ensured by triggering and controlling, so that the problem needs to be solved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a quantum measurement and control system which can effectively ensure the synchronization of a clock signal, a trigger signal and a control signal.
In order to achieve the above object, an embodiment of the present invention provides a quantum measurement and control system, including: a quantum device and a synchronization module; the synchronization module includes: the clock module is used for outputting a clock signal; the first control module is used for generating a first trigger signal and a first control signal and carrying out delay compensation on the clock signal according to delay information of a path between the synchronization module and the quantum equipment to obtain a delay compensation clock signal; and the first transceiver module is used for transmitting the first trigger signal, the first control signal and the delay compensation clock signal to the quantum equipment.
In addition, the quantum measurement and control system according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the number of the quantum devices and the first transceiver module is at least two, and transmission clock signals obtained after the delay compensation clock signals are transmitted to the at least two quantum devices are synchronized.
According to one embodiment of the invention, the quantum device comprises: the second transceiver module is used for receiving a transmission clock signal obtained after the first trigger signal, the first control signal and the delay compensation clock signal are transmitted to the second transceiver module; the data clock recovery module is used for sending the transmission clock signal to a second control module through a phase-locked loop and sending the first trigger signal and the first control signal to the second control module; the phase-locked loop is used for reducing the jitter of the transmission clock signal; the second control module is configured to obtain trigger data and control data in the first trigger signal and the first control signal according to the transmission clock signal, and send a response signal to the first transceiver module through the second transceiver module.
According to an embodiment of the invention, the second control module is further configured to: and after acquiring the trigger data and the control data in the first trigger signal and the first control signal according to the transmission clock signal, sending a response signal to the first transceiver module through the second transceiver module.
According to an embodiment of the invention, the second control module is further configured to: generating a second control signal and a second trigger signal, and sending the second control signal and the second trigger signal to the first transceiver module through the second transceiver module; the first transceiver module sends the second control signal and the second trigger signal to acquisition equipment, so that the acquisition equipment sends a feedback signal to the second control module through the first transceiver module and the second transceiver module to adjust the second control signal.
According to an embodiment of the invention, the acquisition device is further comprised.
According to an embodiment of the present invention, the first transceiver module and the second transceiver module are optical transceiver modules, and the first transceiver module is connected to the second transceiver module through an optical fiber.
According to one embodiment of the invention, the quantum device comprises at least one of the following devices: an arbitrary waveform generator, a data acquisition system, and an arbitrary sequencer.
According to one embodiment of the invention, the clock module comprises a crystal oscillator.
According to one embodiment of the invention, the first control module and the second control module are field programmable gate arrays.
According to the quantum measurement and control system provided by the embodiment of the invention, a clock signal can be output through the clock module, the first control module is used for generating the first trigger signal and the first control signal, the clock signal is subjected to delay compensation according to delay information of a path between the synchronization module and the quantum equipment to obtain a delay compensation clock signal, and the first trigger signal, the first control signal and the delay compensation clock signal are sent to the quantum equipment through the first transceiver module. Therefore, the synchronization of the clock signal, the trigger signal and the control signal is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a block schematic diagram of a quantum measurement and control system according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a quantum measurement and control system according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following describes a quantum measurement and control system proposed according to an embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of a quantum measurement and control system according to an embodiment of the present invention. As shown in fig. 1, the quantum measurement and control system includes: quantum device 100 and synchronization module 200; wherein, the synchronization module 200 comprises: a clock module 201, a first control module 202 and a first transceiver module 203.
The clock module 201 is configured to output a clock signal. The first control module 202 is configured to generate a first trigger signal and a first control signal, and perform delay compensation on the clock signal according to delay information of a path between the synchronization module 200 and the quantum device 100 to obtain a delay compensated clock signal. The first transceiver module 203 is configured to transmit the first trigger signal and the first control signal and the delay compensated clock signal to the quantum device 100.
According to one embodiment of the invention, the quantum device 100 comprises at least one of the following devices: AWG (arbitrary waveform Generator), DAQ (Data Acquisition) and ASG (Automatic Sequence Generator). That is, the quantum device 100 may be an AWG, or an ADC, or an ASG; the quantum device 100 may also be a combination of an AWG and an ADC, or an ADC and an ASG, or an AWG and an ASG; the quantum device 100 may also be a combination of AWG, ADC, and ASG.
Optionally, according to an embodiment of the present invention, the clock module 201 may include a high precision crystal Oscillator (OSC), the first control module 202 may be a Field Programmable Gate Array (FPGA), and the first transceiver module 203 may be an optical transceiver module (SFP +).
For example, as shown in fig. 2, the quantum device 100 and the synchronization module 200 may be connected by an optical fiber, the quantum device 100 may receive a signal from the synchronization module 200 by the optical fiber, the clock module 201 is an OSC, the first control module 202 is an FPGA, and the first transceiver module 203 is an optical transceiver module SFP +, where the clock module 201 may be a high-precision clock source formed by a constant temperature control crystal oscillator, the clock module 201 may output a clock signal, and the FPGA may generate a first trigger signal and a first control signal. Therefore, only one optical fiber is needed between the synchronization module 200 and the quantum device 100 to perform synchronization of the clock signal, the trigger signal and the control signal and interaction of information between the plates, and compared with the prior art, the synchronization can be completed by a plurality of signal lines, which is more convenient; and the communication is carried out through the optical fiber, compared with the transmission of electric signals between boards in the related technology, the optical fiber communication has the advantages of higher speed, lower loss and stronger anti-interference capability, and the isolation among all devices is ensured.
It should be noted that, because the length of the optical fiber and the path are different when the quantum device 100 receives the signal from the synchronization module 200, and the time when the synchronous clock generated by the same synchronization module 200 reaches the quantum device 100 is different, the synchronization mechanism may perform an echo test through the synchronization module 200, so as to measure the clock path delay reaching the quantum device 100, and the FPGA of the synchronization module 200 may collect different delays on each path to perform delay compensation, so that the clocks reaching the quantum device 100 are synchronized after the delay compensation, and the first trigger signal, the first control signal, and the delay compensation clock signal reaching the quantum device 100 are also automatically synchronized.
According to an embodiment of the present invention, the number of the quantum devices 100 and the first transceiver module 203 is at least two, and the transmission clock signals obtained after the delay compensation clock signals are transmitted to the at least two quantum devices are synchronized.
Specifically, as shown in fig. 2, the quantum device 100 and the first transceiver module 203 are multiple in number, and in order to ensure synchronization of the clock signal, the trigger signal, and the control signal, the embodiments of the present invention may synchronize the transmission clock signals obtained after transmitting the delay compensation clock signal to at least two quantum devices. That is to say, the quantum measurement and control system according to the embodiment of the present invention is easier to expand, and one synchronization module 200 may include a plurality of first transceiver modules 203 and may be equipped with a plurality of quantum devices 100, which is not limited by the number of card slots compared to the chassis in the related art.
According to an embodiment of the present invention, as shown in fig. 2, the quantum device 100 includes: a second transceiver module, a data clock recovery module (CDR) and a Phase Locked Loop (PLL). The second transceiver module is used for receiving a transmission clock signal obtained after the first trigger signal, the first control signal and the delay compensation clock signal are transmitted to the second transceiver module. The data clock recovery module is used for sending the transmission clock signal to the second control module through the phase-locked loop and sending the first trigger signal and the first control signal to the second control module. The phase-locked loop is used for reducing the jitter of a transmission clock signal; and the second control module is used for acquiring the first trigger signal and trigger data and control data in the first control signal according to the transmission clock signal and sending the response signal to the first transceiver module through the second transceiver module.
Optionally, according to an embodiment of the present invention, the second control module is a field programmable gate array FPGA, the second transceiver module is an optical transceiver module SFP +, and the first transceiver module is connected to the second transceiver module through an optical fiber.
Specifically, as shown in fig. 2, after the quantum device 100 receives a signal from the synchronization module 200 through an optical fiber, the clock signal may be separated from the first trigger signal and the first control signal by the data clock recovery module, and the clock signal may be sent to the field programmable gate array FPGA after passing through a local one-stage high-performance phase-locked loop, where the phase-locked loop may reduce jitter of the transmission clock signal, the first trigger signal and the first control signal may be directly sent to the field programmable gate array FPGA, and the FPGA decodes the first trigger signal and the first control signal according to the transmission clock signal to obtain trigger data and control data in the first trigger signal and the first control signal, and sends a response signal back to the synchronization module 200 through the optical transceiver module SFP +.
Further, according to an embodiment of the present invention, the second control module is further configured to: after the trigger data and the control data in the first trigger signal and the first control signal are acquired according to the transmission clock signal, the response signal is sent to the first transceiver module through the second transceiver module, so that the response signal after the trigger data and the control data are acquired can be sent to the first transceiver module through the second transceiver module, and the accuracy of the acquired data is guaranteed.
According to one embodiment of the invention, the system further comprises an acquisition device.
According to an embodiment of the invention, the second control module is further configured to: generating a second control signal and a second trigger signal, and sending the second control signal and the second trigger signal to the first transceiver module through the second transceiver module; the first transceiver module sends the second control signal and the second trigger signal to the acquisition equipment, so that the acquisition equipment sends the feedback signal to the second control module through the first transceiver module and the second transceiver module to adjust the second control signal.
Specifically, taking superconducting quantum computing as an example, a complete loop comprises an AWG (arrayed waveguide grating) generating a specific waveform to regulate and control quantum bits, and then the output of the AWG is regulated according to the result of data processing of an AD acquisition card. In one embodiment of the invention, the AWG generates a specific waveform, and at the same time, generates a trigger signal to the AD acquisition card for data acquisition via the synchronization module, and the result generated by the acquisition card is transmitted back to the AWG via the synchronization module to change its output.
According to the quantum measurement and control system provided by the embodiment of the invention, a clock signal can be output through the clock module, the first control module is used for generating the first trigger signal and the first control signal, the clock signal is subjected to delay compensation according to delay information of a path between the synchronization module and the quantum equipment to obtain a delay compensation clock signal, and the first trigger signal, the first control signal and the delay compensation clock signal are sent to the quantum equipment through the first transceiver module. Therefore, the synchronization of the clock signal, the trigger signal and the control signal is ensured. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A quantum measurement and control system is characterized by comprising: a quantum device and a synchronization module; the synchronization module includes:
the clock module is used for outputting a clock signal;
the first control module is used for generating a first trigger signal and a first control signal and carrying out delay compensation on the clock signal according to delay information of a path between the synchronization module and the quantum equipment to obtain a delay compensation clock signal;
and the first transceiver module is used for transmitting the first trigger signal, the first control signal and the delay compensation clock signal to the quantum equipment.
2. The quantum measurement and control system of claim 1, wherein the number of the quantum devices and the first transceiver module is at least two, and transmission clock signals obtained after the delay compensation clock signals are transmitted to the at least two quantum devices are synchronous.
3. The quantum measurement and control system of claim 1, wherein the quantum device comprises:
the second transceiver module is used for receiving a transmission clock signal obtained after the first trigger signal, the first control signal and the delay compensation clock signal are transmitted to the second transceiver module;
the data clock recovery module is used for sending the transmission clock signal to a second control module through a phase-locked loop and sending the first trigger signal and the first control signal to the second control module;
the phase-locked loop is used for reducing the jitter of the transmission clock signal;
the second control module is configured to obtain trigger data and control data in the first trigger signal and the first control signal according to the transmission clock signal, and send a response signal to the first transceiver module through the second transceiver module.
4. The quantum measurement and control system of claim 3, wherein the second control module is further configured to:
and after acquiring the trigger data and the control data in the first trigger signal and the first control signal according to the transmission clock signal, sending a response signal to the first transceiver module through the second transceiver module.
5. The quantum measurement and control system of claim 3, wherein the second control module is further configured to: generating a second control signal and a second trigger signal, and sending the second control signal and the second trigger signal to the first transceiver module through the second transceiver module;
the first transceiver module sends the second control signal and the second trigger signal to acquisition equipment, so that the acquisition equipment sends a feedback signal to the second control module through the first transceiver module and the second transceiver module to adjust the second control signal.
6. The quantum measurement and control system of claim 3, further comprising the collection device.
7. The quantum measurement and control system of claim 3, wherein the first transceiver module and the second transceiver module are optical transceiver modules, and the first transceiver module is connected with the second transceiver module through an optical fiber.
8. The quantum measurement and control system of claim 1, wherein the quantum device comprises at least one of:
an arbitrary waveform generator, a data acquisition system, and an arbitrary sequencer.
9. The quantum measurement and control system of claim 1, wherein the clock module comprises a crystal oscillator.
10. The quantum measurement and control system of claim 3, wherein the first control module and the second control module are field programmable gate arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397990.6A CN113126527B (en) | 2019-12-30 | 2019-12-30 | Quantum measurement and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397990.6A CN113126527B (en) | 2019-12-30 | 2019-12-30 | Quantum measurement and control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113126527A true CN113126527A (en) | 2021-07-16 |
| CN113126527B CN113126527B (en) | 2022-07-26 |
Family
ID=76768019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911397990.6A Active CN113126527B (en) | 2019-12-30 | 2019-12-30 | Quantum measurement and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113126527B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116185130A (en) * | 2021-11-26 | 2023-05-30 | 合肥本源量子计算科技有限责任公司 | Clock synchronization device and method, quantum measurement and control system and quantum computer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007020011A (en) * | 2005-07-08 | 2007-01-25 | Nec Corp | Communication system and its monitor control method |
| CN102035512A (en) * | 2010-11-19 | 2011-04-27 | 中国工程物理研究院流体物理研究所 | Clock phase-splitting technology-based precise digital time delay synchronous machine and time delay method |
| CN106526575A (en) * | 2016-10-14 | 2017-03-22 | 北京空间机电研究所 | Pulse time synchronization system for quantum enhanced laser detection |
| CN106788849A (en) * | 2016-12-30 | 2017-05-31 | 北京信息科学技术研究院 | A kind of delay compensation method for adaptive optic fiber length in quantum key dispatching system |
| CN107947930A (en) * | 2017-12-29 | 2018-04-20 | 中南大学 | The modulation compensated system of continuous variable quantum key distribution and its implementation |
| CN108494399A (en) * | 2018-03-22 | 2018-09-04 | 苏州瑞迈斯医疗科技有限公司 | A kind of clock distributing equipment and PET system |
| CN109039594A (en) * | 2017-06-12 | 2018-12-18 | 科大国盾量子技术股份有限公司 | A kind of fast polarization feedback compensation device and Complex Channel quantum key distribution system |
| CN109547144A (en) * | 2018-12-30 | 2019-03-29 | 华南师范大学 | A kind of clock system and method based on quantum entanglement |
| CN109640389A (en) * | 2018-12-30 | 2019-04-16 | 广东大普通信技术有限公司 | A kind of method and apparatus of delay compensation |
| CN110545182A (en) * | 2019-10-14 | 2019-12-06 | 哈尔滨工业大学 | Self-adaptive optical path compensation method of double-path plug-and-play quantum key distribution system |
-
2019
- 2019-12-30 CN CN201911397990.6A patent/CN113126527B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007020011A (en) * | 2005-07-08 | 2007-01-25 | Nec Corp | Communication system and its monitor control method |
| CN102035512A (en) * | 2010-11-19 | 2011-04-27 | 中国工程物理研究院流体物理研究所 | Clock phase-splitting technology-based precise digital time delay synchronous machine and time delay method |
| CN106526575A (en) * | 2016-10-14 | 2017-03-22 | 北京空间机电研究所 | Pulse time synchronization system for quantum enhanced laser detection |
| CN106788849A (en) * | 2016-12-30 | 2017-05-31 | 北京信息科学技术研究院 | A kind of delay compensation method for adaptive optic fiber length in quantum key dispatching system |
| CN109039594A (en) * | 2017-06-12 | 2018-12-18 | 科大国盾量子技术股份有限公司 | A kind of fast polarization feedback compensation device and Complex Channel quantum key distribution system |
| CN107947930A (en) * | 2017-12-29 | 2018-04-20 | 中南大学 | The modulation compensated system of continuous variable quantum key distribution and its implementation |
| CN108494399A (en) * | 2018-03-22 | 2018-09-04 | 苏州瑞迈斯医疗科技有限公司 | A kind of clock distributing equipment and PET system |
| CN109547144A (en) * | 2018-12-30 | 2019-03-29 | 华南师范大学 | A kind of clock system and method based on quantum entanglement |
| CN109640389A (en) * | 2018-12-30 | 2019-04-16 | 广东大普通信技术有限公司 | A kind of method and apparatus of delay compensation |
| CN110545182A (en) * | 2019-10-14 | 2019-12-06 | 哈尔滨工业大学 | Self-adaptive optical path compensation method of double-path plug-and-play quantum key distribution system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116185130A (en) * | 2021-11-26 | 2023-05-30 | 合肥本源量子计算科技有限责任公司 | Clock synchronization device and method, quantum measurement and control system and quantum computer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113126527B (en) | 2022-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101150316B (en) | A multi-channel clock synchronization method and system | |
| US20130195443A1 (en) | Time synchronization method, device, and system | |
| CN110784783B (en) | Clock synchronization method and device based on optical fiber network | |
| CN103634093B (en) | A kind of tellurometer survey based on Frequency Synchronization and time synchronized system and method | |
| US11196533B2 (en) | Time synchronization system and time synchronization method | |
| US20190302245A1 (en) | Time coherent network | |
| WO2013143385A1 (en) | Calculating time offset | |
| CN109039453A (en) | A kind of measuring system and measurement method of transmission fiber delay | |
| CN113452502B (en) | Active and passive composite phase compensation time frequency transmission method and system | |
| CN110971332A (en) | Pulse-per-second time signal synchronization device and method | |
| US20120137013A1 (en) | Arrangement and Method for Interchanging Time Markers | |
| CN104506297A (en) | Frequency transmission system based on digital compensation systems, and transmission method of frequency transmission system | |
| CN105425899A (en) | Multi-scope control and synchronization system | |
| CN113126527B (en) | Quantum measurement and control system | |
| CN108738127B (en) | Radio remote unit, baseband processing unit, distributed base station and synchronization method thereof | |
| CN111934805A (en) | Ground inter-station time-frequency transfer method suitable for pseudo satellite augmentation system | |
| CN113608428B (en) | Method for realizing synchronization of multi-satellite inter-satellite pulse per second and clock | |
| Daniluk et al. | White rabbit: Sub-nanosecond synchronization for embedded systems | |
| Bigler et al. | High accuracy synchronization for distributed massive MIMO using white rabbit | |
| KR100967197B1 (en) | Clock transmission Apparatus for network synchronization between system and system | |
| WO2018016056A1 (en) | Communication apparatus, communication system, and delay compensation method | |
| CN109981211B (en) | Distributed optical fiber time frequency joint transmission system and transmission method | |
| CN112311492A (en) | High-precision clock synchronization method based on FPGA | |
| CN208971520U (en) | A kind of measuring system of transmission fiber delay | |
| CN113098623B (en) | Optical fiber phase synchronization system based on optical active compensation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230000 floor 4, zone a, E2 building, phase II, innovation industrial park, 2800 innovation Avenue, hi tech Zone, Hefei City, Anhui Province Patentee after: Guoyi Quantum Technology (Hefei) Co.,Ltd. Address before: 230000 floor 4, zone a, E2 building, phase II, innovation industrial park, 2800 innovation Avenue, hi tech Zone, Hefei City, Anhui Province Patentee before: Guoyi Quantum (Hefei) Technology Co.,Ltd. |