Exact real-time dynamics of the quantum Rabi model

被引：55

作者：

Wolf, F. Alexander ^{[1
]}

Kollar, Marcus ^{[1
]}

Braak, Daniel ^{[1
]}

机构：

[1] Univ Augsburg, Ctr Elect Correlat & Magnetism, Inst Phys, D-86135 Augsburg, Germany

来源：

PHYSICAL REVIEW A | 2012年 / 85卷 / 05期

关键词：

2-LEVEL SYSTEM; CAVITY;

D O I：

10.1103/PhysRevA.85.053817

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We use the analytical solution of the quantum Rabi model to obtain absolutely convergent series expressions of the exact eigenstates and their scalar products with Fock states. This enables us to calculate the numerically exact time evolution of <sigma(x)(t)> and <sigma(z)(t)> for all regimes of the coupling strength, without truncation of the Hilbert space. We find a qualitatively different behavior of both observables which can be related to their representations in the invariant parity subspaces.

引用

页数：7

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