Feedback Stabilization of the Resonant Frequency in a Tunable Microwave Cavity with Single-Photon Occupancy
Feedback Stabilization of the Resonant Frequency in a Tunable Microwave Cavity with Single-Photon Occupancy
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单光子占用可调谐微波腔中谐振频率的反馈稳定
DOI:
10.1103/physrevapplied.18.064033
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发表时间:
2022
影响因子:
4.6
通讯作者:
Rimberg, A.J.
中科院分区:
文献类型:
--
作者:
Kanhirathingal, S.;Thyagarajan, B.;Brock, B.L.;Li, Juliang;Jeffrey, E.;Blencowe, M.P.;Mutus, J.Y.;Rimberg, A.J.
We successfully demonstrate low-frequency noise suppression in the resonant-frequency fluctuations of a cavity-embedded Cooper-pair transistor (cCPT) driven at single-photon occupancy. In particular, we report a reduction in the resonant-frequency fluctuations caused by the internal charge noise over a bandwidth of approximatelywhen the cavity is driven at an average photon numberand a bandwidth of 11 Hz for an average. The gate-dependent tunability of the cCPT allows us to implement a feedback scheme derived from the Pound-Drever-Hall locking technique. This reduces fluctuations due to intrinsic charge noise, which otherwise interfere with the operation of the cCPT as a near quantum-limited electrometer. Our technique can be generalized to achieve frequency stabilization in tunable microwave resonators that play a vital role in today’s quantum computing architectures, thereby moderating the limitations in detection caused by the intrinsicnoise on such circuit devices. The work discusses the various aspects relating to the operation of a fully functional feedback loop down to the single-photon level.
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影响因子:
4.6
作者:
Brock, B. L.;Blencowe, M. P.;Rimberg, A. J.
通讯作者:
Rimberg, A. J.
影响因子:
3.7
作者:
Anton, S. M.;Mueller, C.;Clarke, John
通讯作者:
Clarke, John
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
M. Gustafsson;A. Pourkabirian;G. Johansson;J. Clarke;P. Delsing
通讯作者:
P. Delsing
影响因子:
1.6
作者:
Lindstroem, T.;Burnett, J.;Tzalenchuk, A. Ya
通讯作者:
Tzalenchuk, A. Ya
影响因子:
8.6
作者:
Schloer, Steffen;Lisenfeld, Juergen;Weides, Martin
通讯作者:
Weides, Martin