Quantum Bayesian rule for weak measurements of qubits in superconducting circuit QED
Quantum Bayesian rule for weak measurements of qubits in superconducting circuit QED
复制标题
超导电路 QED 中量子位弱测量的量子贝叶斯规则
DOI:
10.1088/1367-2630/16/12/123047
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发表时间:
2014-04
期刊:
影响因子:
--
通讯作者:
Xin-Qi Li
中科院分区:
文献类型:
--
作者:
Peiyue Wang;Lupei Qin;Xin-Qi Li
Compared with the quantum trajectory equation (QTE), the quantum Bayesian approach has the advantage of being more efficient to infer a quantum state under monitoring, based on the integrated output of measurements. For weak measurement of qubits in circuit quantum electrodynamics (cQED), properly accounting for the measurement backaction effects within the Bayesian framework is an important problem of current interest. Elegant work towards this task was carried out by Korotkov in ‘bad-cavity’ and weak-response limits (Korotkov 2011 Quantum Bayesian approach to circuit QED measurement (arXiv:1111.4016)). In the present work, based on insights from the cavity-field states (dynamics) and the help of an effective QTE, we generalize the results of Korotkov to more general system parameters. The obtained Bayesian rule is in full agreement with Korotkovʼs result in limiting cases and as well holds satisfactory accuracy in non-limiting cases in comparison with the QTE simulations. We expect the proposed Bayesian rule to be useful for future cQED measurement and control experiments.
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影响因子:
3.7
作者:
L. Pryadko;A. Korotkov
通讯作者:
L. Pryadko;A. Korotkov
DOI:
--
发表时间:
2014
期刊:
--
影响因子:
--
作者:
N. Roch;M. Schwartz;F. Motzoi;C. Macklin;R Patil Vijay;A. Eddins;A. Korotkov;K. B. Whaley;M. Saro
通讯作者:
N. Roch;M. Schwartz;F. Motzoi;C. Macklin;R Patil Vijay;A. Eddins;A. Korotkov;K. B. Whaley;M. Saro
DOI:
10.1007/978-3-540-47620-7
发表时间:
1993
期刊:
--
影响因子:
--
作者:
H. Carmichael
通讯作者:
H. Carmichael
DOI:
10.1093/acprof:oso/9780199681181.003.0017
发表时间:
2011-11
期刊:
arXiv: Quantum Physics
影响因子:
--
作者:
A. Korotkov
通讯作者:
A. Korotkov
影响因子:
2.9
作者:
M. Sarovar;H. Goan;T. Spiller;G. Milburn
通讯作者:
M. Sarovar;H. Goan;T. Spiller;G. Milburn