Object structure

Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2024

Volume:

17

Number:

1

ISSN:

1829-1171

Official URL:


Title:

Quantum Phase Transition in a Modified Jaynes-Cummings Model

Creator:

Alexanian, Moorad

Subject:

Physics

Uncontrolled Keywords:

Rabi model ; Jaynes-Cummings model ; squeezed state ; quantum phase transition ; superradiance

Coverage:

1-8

Abstract:

We introduce a modified Jaynes-Cummings model with single-photon cavity radiation field but with the atomic system instead of exchanging a single photon as in the Jaynes-Cummings model, it exchanges instead a squeezed photon with squeezing parameter r. This allows us to interpolate between the Rabi model (r = ∞) and the Jaynes-Cummings model (r = 0) by varying r. The model exhibits a quantum phase transition. Accordingly, the quantum phase transition realized in the Rabi model, giving rise to superradiance, also occurs in the Jaynes-Cummings model.

Type:

Electronic journal

Format:

pdf

Identifier:

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Location of original object:

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