Effect of the Diamagnetic term in the ultra-strong coupling regime

We consider a set of two level atoms interacting with a single quantized bosonic mode governed by the Dicke model. In this model it is well known that under a critical value of the light-matter coupling a spontaneous radiation process takes place. In the present work, we investigate the dynamics of...

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Main Authors: Sakhi Z., Chentouf A., Bennai M.
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Subjects:
Online Access:https://doi.org/10.1051/epjconf/201919800011
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author Sakhi Z.
Chentouf A.
Bennai M.
author_facet Sakhi Z.
Chentouf A.
Bennai M.
author_sort Sakhi Z.
collection DOAJ
description We consider a set of two level atoms interacting with a single quantized bosonic mode governed by the Dicke model. In this model it is well known that under a critical value of the light-matter coupling a spontaneous radiation process takes place. In the present work, we investigate the dynamics of the system and we study the Wigner distribution function to visualize the effect of the minimal coupling on the ground state wavefunction from the normal phase to the superradiant one. We show also that the entanglement of Bi-partite model is limited by the presence of the diamagnetic term.
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spelling doaj.art-9ccce024f3874d03b42bf646c3bea7bd2022-12-21T18:25:16ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-011980001110.1051/epjconf/201919800011epjconf_qtech2018_00011Effect of the Diamagnetic term in the ultra-strong coupling regimeSakhi Z.Chentouf A.Bennai M.We consider a set of two level atoms interacting with a single quantized bosonic mode governed by the Dicke model. In this model it is well known that under a critical value of the light-matter coupling a spontaneous radiation process takes place. In the present work, we investigate the dynamics of the system and we study the Wigner distribution function to visualize the effect of the minimal coupling on the ground state wavefunction from the normal phase to the superradiant one. We show also that the entanglement of Bi-partite model is limited by the presence of the diamagnetic term.https://doi.org/10.1051/epjconf/201919800011Entanglementdiamagnetic termCavity QEDCircuit QED
spellingShingle Sakhi Z.
Chentouf A.
Bennai M.
Effect of the Diamagnetic term in the ultra-strong coupling regime
EPJ Web of Conferences
Entanglement
diamagnetic term
Cavity QED
Circuit QED
title Effect of the Diamagnetic term in the ultra-strong coupling regime
title_full Effect of the Diamagnetic term in the ultra-strong coupling regime
title_fullStr Effect of the Diamagnetic term in the ultra-strong coupling regime
title_full_unstemmed Effect of the Diamagnetic term in the ultra-strong coupling regime
title_short Effect of the Diamagnetic term in the ultra-strong coupling regime
title_sort effect of the diamagnetic term in the ultra strong coupling regime
topic Entanglement
diamagnetic term
Cavity QED
Circuit QED
url https://doi.org/10.1051/epjconf/201919800011
work_keys_str_mv AT sakhiz effectofthediamagnetictermintheultrastrongcouplingregime
AT chentoufa effectofthediamagnetictermintheultrastrongcouplingregime
AT bennaim effectofthediamagnetictermintheultrastrongcouplingregime