Journal
PHYSICAL REVIEW LETTERS
Volume 129, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.129.063601
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Funding
- NSF Q-SEnSE [OMA 2016244]
- NSF PFC [1734006]
- DARPA
- ARO [W911NF16-1-0576]
- Research Centers of the Deutsche Forschungsgemeinschaft (DFG)
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [429529648 TRR 306]
- DFG Priority Program [1929 GiRyd]
- Huazhong University of Science and Technology
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We present a general approach to derive Lindblad master equations for subsystems coupled to dissipative bosonic modes. We apply this approach to the dissipative Dicke model and successfully predict the Dicke phase transition and quantum metastability. The performance of our formalism is validated by comparing with exact diagonalization and numerical integration results.
We present a general approach to derive Lindblad master equations for a subsystem whose dynamics is coupled to dissipative bosonic modes. The derivation relies on a Schrieffer-Wolff transformation which allows us to eliminate the bosonic degrees of freedom after self-consistently determining their state as a function of the coupled quantum system. We apply this formalism to the dissipative Dicke model and derive a Lindblad master equation for the atomic spins, which includes the coherent and dissipative interactions mediated by the bosonic mode. This master equation accurately predicts the Dicke phase transition and gives the correct steady state. In addition, we compare the dynamics using exact diagonalization and numerical integration of the master equation with the predictions of semiclassical trajectories. We finally test the performance of our formalism by studying the relaxation of a NOON state and show that the dynamics captures quantum metastability.
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