Name
Title | ||
|---|---|---|
Strong measurement and quantum feedback for persistent Rabi oscillations in circuit QED experiments |
Abstract | ||
|---|---|---|
We investigate the stabilization of the dynamical state of a superconducting qubit. In a series of papers, A. Korotkov and his co-workers suggested that continuous weak measurement of the state of a qubit and applying an appropriate feedback on the amplitude of a Rabi drive, should maintain the coherence of the Rabi oscillations for arbitrary time. Here, in the aim of addressing a metrological application of these persistent Rabi oscillations, we explore a new variant of such strategies. This variant is based on performing strong measurements in a discrete manner and using the measurement record to correct the phase of the Rabi oscillations. Noting that such persistent Rabi oscillations can be viewed as an amplitude-to-frequency convertor (converting the amplitude of the Rabi microwave drive to a precise frequency), we propose another feedback layer consisting of a simple analog phase locked loop to compensate the low frequency deviations in the amplitude of the Rabi drive. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/CDC.2012.6426309 | CDC |
Keywords | DocType | ISSN |
metrological application,driver circuits,rabi microwave drive,quantum optics,amplitude-to-frequency convertor,quantum feedback,analog phase locked loop,dynamical state stabilization,superconducting qubit,phase locked loops,squids,persistent rabi oscillation,microwave circuits,feedback layer,circuit qed experiment | Conference | 0743-1546 E-ISBN : 978-1-4673-2064-1 |
ISBN | Citations | PageRank |
978-1-4673-2064-1 | 0 | 0.34 |
References | Authors | |
0 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| M. Mirrahimi | 1 | 204 | 32.24 |
| Benjamin Huard | 2 | 0 | 0.34 |
| Michel Devoret | 3 | 2 | 1.35 |