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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Nonperturbative Switching Rates in Bistable Open Quantum Systems: From Driven Kerr Oscillators to Dissipative Cat
Léon Carde1,2, Ronan Gautier2, Nicolas Didier2
1Laboratoire de Physique de l'École Normale Supérieure, Inria, ENS, Mines ParisTech, Université PSL, Sorbonne Université, Paris, France.
None:
In this Letter, we use path integral techniques to predict the switching rate in a single-mode bistable open quantum system. While analytical expressions are well-known to be accessible for systems subject to Gaussian noise obeying classical detailed balance, we extend this approach to a class of open quantum systems, those which satisfy the recently introduced notion of hidden time-reversal symmetry [D. Roberts et al., PRX Quantum 2, 020336 (2021)2691-339910.1103/PRXQuantum.2.020336]. In particular, in the context of quantum computing, we obtain analytical estimates of bit-flip error rates in cat-qubit architectures. We confirm these findings by comparing our results to numerically exact diagonalization of the Lindbladian. Our results provide a path towards exploring switching phenomena in multistable open quantum systems.
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