Hausinger, Johannes and Grifoni, Milena (2011) Qubit-oscillator system under ultrastrong coupling and extreme driving. PHYSICAL REVIEW A, 83 (3): 030301. ISSN 1050-2947,
Full text not available from this repository. (Request a copy)Abstract
We introduce an approach to studying a driven qubit-oscillator system in the ultrastrong coupling regime, where the ratio g/Omega between coupling strength and oscillator frequency approaches unity or goes beyond, and simultaneously for driving strengths much bigger than the qubit energy splitting (extreme driving). Both qubit-oscillator coupling and external driving lead to a dressing of the qubit tunneling matrix element of different nature: the former can be used to suppress selectively certain oscillator modes in the spectrum, while the latter can bring the qubit's dynamics to a standstill at short times (coherent destruction of tunneling) even in the case of ultrastrong coupling.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CIRCUIT QUANTUM ELECTRODYNAMICS; DYNAMICS; CAVITY; ATOMS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Jun 2020 05:46 |
| Last Modified: | 24 Jun 2020 05:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21120 |
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