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Journal of Physics B Atomic Molecular and Optical Physics

Double Rabi model in the ultra-strong coupling regime: entanglement and chaos beyond the rotating wave approximation

Yon Shin Teo, Jiangbin Gong

Published Nov 20, 2013• 1 citation
Publisher

Abstract

10.1088/0953-4075/46/23/235504
DOI
10.1088/0953-4075/46/23/235504

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We analyze the dynamics of the quantum Rabi model for two qubits interacting through a common bosonic field (resonator), focusing on the generation and detection of maximally entangled states. We obtain analytical results for the unitary dynamics of this system in the slow-qubit (or degenerate) regime, considering ultra-strong coupling between qubits and resonator mode, for which the rotating wave approximation (RWA) is no longer applicable. We also numerically investigate the dynamics beyond the slow-qubit condition in order to study the validity of the model in the presence of less strict conditions.