Measurement system of correlation functions of microwave single photon source in real time

A. Korenkov, A. Dmitriev, O. Astafiev

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Several quantum setups, such as quantum key distribution networks[1] and quantum simulators (e.g. boson sampling), by their design rely on single photon sources (SPSs). These quantum setups were demonstrated to operate in optical frequency domain. However, following the steady advances in circuit quantum electrodynamics, a proposal has been made recently[2] to demonstrate boson sampling with microwave photons. This in turn requires the development of reliable microwave SPS. It's one of the most important characteristics are the first-order and the second-order correlation functions g1 and g2. The measurement technique of g1 and g2 is significantly different from that in the optical domain [3],[4] because of the current unavailability of microwave single-photon detectors. In particular, due to high levels of noise present in the system a substantial amount of statistics in needed to be acquired. This work presents a platform for measurement of g1 and g2 that processes the incoming data in real time, maximizing the efficiency of data acquisition. The use of field-programmable gate array (FPGA) electronics, common in similar experiments[3] but complex in programming, is avoided; instead, the calculations are performed on a standard desktop computer. The platform is used to perform the measurements of the first-order and the second-order correlation functions of the microwave SPS.

Original languageEnglish
Title of host publication4th International Conference on Quantum Technologies, ICQT 2017
EditorsAlexander I. Lvovsky, Michael L. Gorodetsky, Alexey N. Rubtsov, Alexander I. Lvovsky
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416284
DOIs
Publication statusPublished - 28 Feb 2018
Externally publishedYes
Event4th International Conference on Quantum Technologies, ICQT 2017 - Moscow, Russian Federation
Duration: 12 Jul 201716 Jul 2017

Publication series

NameAIP Conference Proceedings
Volume1936
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Conference on Quantum Technologies, ICQT 2017
Country/TerritoryRussian Federation
CityMoscow
Period12/07/1716/07/17

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