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Open Quantum Systems Decoherence Superconducting Qubits

Analytical solutions by squeezing to the anisotropic Rabi model in the nonperturbative deep-strong coupling regime

arXiv
Authors: Yu-Yu Zhang, Xiang-You Chen

Year

2017

Paper ID

44032

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

A novel, unexplored nonperturbative deep-strong coupling (npDSC) achieved in superconducting circuits has been studied in the anisotropic Rabi model by the generalized squeezing rotating-wave approximation (GSRWA). Energy levels are evaluated analytically from the reformulated Hamiltonian and agree well with numerical ones under a wide range of coupling strength. Such improvement ascribes to deformation effects in the displaced-squeezed state presented by the squeezed momentum variance, which are omitted in the previous displaced state. The population dynamics confirm the validity of our approach for the npDSC strength. Our approach paves a way to the exploration of analysis in qubit-oscillator experiments for the npDSC strength by the displaced-squeezed state.

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  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
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  • A novel, unexplored nonperturbative deep-strong coupling (npDSC) achieved in superconducting circuits has been studied in the anisotropic Rabi model by the generalized...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1708.04382 [2] arXiv https://arxiv.org/abs/1708.04382 [3] Publisher https://arxiv.org/abs/1708.04382

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