FPGA⁃based linear detection and characterization of microwave 
coherent source

doi:10.3969/j.issn.1007-5461.2023.06.005

Chinese Journal of Quantum Electronics ›› 2023, Vol. 40 ›› Issue (6): 850-857.doi: 10.3969/j.issn.1007-5461.2023.06.005

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FPGA⁃based linear detection and characterization of microwave coherent source

WANG Shuo 1 , PAN Jiazheng 2 , WEI Xingyu 1 , JIANG Junliang 1 , ZHANG Kaixuan 1 , LI Zishuo 1 ,GUO Tingting 1 , XU Wenqu 1 , ZUO Quan 1 , ZHOU Tianshi 1 , SHENG Yifan 1 , SUN Guozhu 1,2*, WU Peiheng 1,2

( 1 Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, China; 2 Purple Mountain Laboratories, Nanjing 211111, China )

Received:2021-12-24 Revised:2022-02-26 Published:2023-11-28 Online:2023-11-28

Abstract

Abstract: Detection and characterization of microwave photon sources is a key step in quantum information. For the optical photons, Hanbury Brown-Twiss interferometer can be used to measure the correlation of them. However, for microwave photons, as the signal-to-noise ratio of them is much lower than that of optical photons, multiple-calculation process is necessary for the elimination of noise influence. Here a new, fast and scalable measurement scheme is demonstrated to characterize a microwave photon source, in which real-time processing and full parallelism are realized by using field programmable gate array (FPGA). And the second-order correlation function of a coherent source with 3 MHz is investigated using the proposed scheme. The good agreement between the output of FPGA and that of the theoretical calculation indicates that, the scheme is promising for application in quantum information processing such as the characterization of microwave single-photon sources.

Key words: quantum information processing, microwave photon source, coherent source, correlation function, filed programmable gate array

CLC Number:

O455

WANG Shuo , PAN Jiazheng , WEI Xingyu , JIANG Junliang , ZHANG Kaixuan , LI Zishuo , GUO Tingting , XU Wenqu , ZUO Quan , ZHOU Tianshi , SHENG Yifan , SUN Guozhu , WU Peiheng , . FPGA⁃based linear detection and characterization of microwave coherent source[J]. Chinese Journal of Quantum Electronics, 2023, 40(6): 850-857.

References

[1] Fox M.Quantum optics: an introduction[M]. 15. Oxford: OUP Oxford, 2006.
[2]Clarke J, Wilhelm F K.Superconducting quantum bits[J].Nature, 2008, 453(7198):1031-42
[3]Zhou Y, Peng Z, Horiuchi Y, et al.Tunable Microwave Single-Photon Source Based on Transmon Qubit with High Efficiency[J].Physical Review Applied, 2020, 13(3):034007-034007
[4]Da Silva M P, Bozyigit D, Wallraff A, et al.Schemes for the observation of photon correlation functions in circuit QED with linear detectors[J].Physical Review A, 2010, 82(4):043804-043804
[5]Bozyigit D, Lang C, Steffen L, et al.Antibunching of microwave-frequency photons observed in correlation measurements using linear detectors[J].Nature Physics, 2010, 7(2):154-158
[6]Caves C M.Quantum Limits on Noise in Linear Amplifiers[J].Physical Review D, 1982, 26(8):1817-1817
[7]Clerk A A, Girvin S M, Marquardt F, et al.Introduction to Quantum Noise,Measurement and Amplification[J].Reviews of Modern Physics, 2008, 82(2):1155-1208
[8]Lang C, Eichler C, Steffen L, et al.Correlations,indistinguishability and entanglement in Hong–Ou–Mandel experiments at microwave frequencies[J].Nature Physics, 2013, 9(6):345-348
[9]Brown R H.A Test of a New Type of Stellar Interferometer on Sirius[J].Nature, 1956, 178(4541):1046-1048
[10]Honglu C, Yuna Z, Lei C, et al.Quantum properties of binomial state field interacting with the cascade three-level atom[J].量子电子学报, 2020, 37(1):76-82
[11] Lang C.Quantum microwave radiation and its interference characterized by correlation function measurements in circuit quantum electrodynamics[D]. ETH Zurich, 2014.
[12]Buracchini, Enrico.The Software Radio Concept[J].IEEE Communications Magazine, 2000, 38(9):138-143
[13] Meyer-Baese U.Digital Signal Processing with Field Programmable Gate Arrays[M]. Berlin: Springer, 2001.

FPGA⁃based linear detection and characterization of microwave coherent source

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