2019
DOI: 10.7498/aps.68.20182077
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Squeezing angle locking of entangled microwave based on photon counting

Abstract: Quantum entanglement possesses important applications in quantum computation, quantum communication, and quantum precision measurement. It is also an important method to improve the performance of quantum radar and quantum radio navigation. However, the penetration of light wave is poor due to the high frequency, which leads to detecting limitations in bad weather. In this context, quantum entanglement in the microwave domain has been extensively studied, and it is hopeful to overcome the above-mentioned defec… Show more

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Cited by 1 publication
(2 citation statements)
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“…It should be noted that in three-wave pumping (for both DJPA The interesting question raised here is how to separate the signal and idler in the two scenarios of the DJPA and NDJPA in the output of the JPA? The answer is the method of splitting two modes as signal and idler in the degenerate and non-degenerate JPAs is done by using a 180°hybrid ring beam splitter [52,53] and they are completely similar to each other as shown in figures 3 and 1. Therefore, the output of JPAs, both in the case of DJPA and in the case of NDJPA, must be split into two modes by the beam splitter.…”
Section: Josephson Parametric Amplifier (Jpa)mentioning
confidence: 99%
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“…It should be noted that in three-wave pumping (for both DJPA The interesting question raised here is how to separate the signal and idler in the two scenarios of the DJPA and NDJPA in the output of the JPA? The answer is the method of splitting two modes as signal and idler in the degenerate and non-degenerate JPAs is done by using a 180°hybrid ring beam splitter [52,53] and they are completely similar to each other as shown in figures 3 and 1. Therefore, the output of JPAs, both in the case of DJPA and in the case of NDJPA, must be split into two modes by the beam splitter.…”
Section: Josephson Parametric Amplifier (Jpa)mentioning
confidence: 99%
“…An amplifier circuit can be described generally as a set of simple harmonic modes with time-dependent couplings. The time-dependent effective quadratic Hamiltonian is [26,51,53]:…”
Section: Josephson Parametric Amplifier (Jpa)mentioning
confidence: 99%