Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum States of Light in Cavity QED: A Computational Study of Wigner Function Dynamics and Atom-Field Entanglement in the Jaynes-Cummings Model

Nguyen Khoi Nguyen

Published Jan 1, 2026• 0 citations
Publisher
DOI
10.13140/rg.2.2.30939.73769

Related papers

Quantum States of Light in Cavity QED: A Computational Study of Wigner Function Dynamics and Atom-Field Entanglement in the Jaynes-Cummings Model

Nguyen Khoi Nguyen

•Sep 17, 2026•0 citations

Cavity QED systems for steady-state sources of Wigner-negative light

Alex Elliott, A. S. Parkins

We present a theoretical investigation of optical cavity quantum electrodynamics (cavity QED) systems, as described by the driven, open Jaynes–Cummings model and some of its variants, as potential sources of steady-state Wigner-negative light. We consider temporal modes in the continuous output field from the cavity and demonstrate pronounced negativity in their Wigner distributions for experimentally relevant parameter regimes. We consider models of both single and collective atomic spin systems, and find a rich structure of Wigner-distribution negativity as the spin size is varied. We also demonstrate an effective realization of all of the models considered using just a single 87 Rb atom and based upon combinations of laser- and laser-plus-cavity-driven Raman transitions between magnetic sublevels in a single ground hyperfine state.

arXiv:2405.03062•Journal of the Optical Society of America B•May 3, 2024•4 citations

Entangled Atoms and Fields: Cavity QED

Dieter Meschede, Axel Schenzle

Springer handbooks•Jan 1, 2006•0 citations

Función de Wigner y Decoherencia Cuántica para Sistemas Átomo-Campo en Cavidades QED

Juan Pablo Cuartas, Herbert Vinck Posada, Boris A. Rodríguez

ABSTRACT: The processes of quantum decoherence in QED cavities have been extensively studied in the last decade, both experimentally by Haroche, Raimond et. al., as theoretically by Nemes, Davidovich et. to the. We present here the dynamics of the Wigner function for a system consisting of a two-level atom and a cavity in a dissipative environment, using a numerical integration scheme that allows us to consider initial Squeezed and Schrodinger's Cat States. The interaction between the atom and the single-mode field is considered by a dispersive model, that is, the interaction in the Hamiltonian of Jaynes-Cummings appears as a small disturbance. The interest is focused both on the quantum characteristics of the dispersive approach (preparation of mesoscopic states) and on the aspects that characterize dynamics and dissipation. In particular, the gradual loss of quantum coherence is observed through the use of the Wigner function, where the disappearance of the interference regions of the initial quantum states is evidenced.

Revista de la Sociedad Colombiana de Física•Jan 1, 2009•0 citations

Entangled Atoms and Fields: Cavity QED

Qiongyi He, R. T. Zhang, Dieter Meschede +1 more

Springer handbooks•Jan 1, 2023•0 citations

Quantum Entanglement in Jaynes-Cummings Model and its applications

Samina Masood

Bulletin of the American Physical Society•Mar 13, 2017•0 citations
We present a theoretical investigation of optical cavity quantum electrodynamics (cavity QED) systems, as described by the driven, open Jaynes–Cummings model and some of its variants, as potential sources of steady-state Wigner-negative light. We consider temporal modes in the continuous output field from the cavity and demonstrate pronounced negativity in their Wigner distributions for experimentally relevant parameter regimes. We consider models of both single and collective atomic spin systems, and find a rich structure of Wigner-distribution negativity as the spin size is varied. We also demonstrate an effective realization of all of the models considered using just a single 87 Rb atom and based upon combinations of laser- and laser-plus-cavity-driven Raman transitions between magnetic sublevels in a single ground hyperfine state.
ABSTRACT: The processes of quantum decoherence in QED cavities have been extensively studied in the last decade, both experimentally by Haroche, Raimond et. al., as theoretically by Nemes, Davidovich et. to the. We present here the dynamics of the Wigner function for a system consisting of a two-level atom and a cavity in a dissipative environment, using a numerical integration scheme that allows us to consider initial Squeezed and Schrodinger's Cat States. The interaction between the atom and the single-mode field is considered by a dispersive model, that is, the interaction in the Hamiltonian of Jaynes-Cummings appears as a small disturbance. The interest is focused both on the quantum characteristics of the dispersive approach (preparation of mesoscopic states) and on the aspects that characterize dynamics and dissipation. In particular, the gradual loss of quantum coherence is observed through the use of the Wigner function, where the disappearance of the interference regions of the initial quantum states is evidenced.