Thermal emission in the ultrastrong-coupling regime

Alessandro Ridolfo, M. Leib, S. Savasta, Michael J. Hartmann

Research output: Contribution to journalArticle

Abstract

We have studied the thermal emission of a cavity quantum electrodynamic system in the ultrastrong-coupling regime, where the atom-cavity coupling rate becomes comparable with the cavity resonance frequency. In this regime, the standard descriptions of photodetection and dissipation fail. By following an approach that was recently put forward by Ridolfo et al (2012 Phys. Rev. Lett. 109 193602), we were able to calculate the emission of systems with arbitrary strength of light-matter interaction, by expressing the electric-field operator in the cavity-emitter dressed basis. In this paper, we present thermal photoluminescence spectra, calculated for given temperatures and for different couplings, in particular, for available circuit quantum electrodynamics parameters.

Original languageEnglish
Article number014053
JournalPhysica Scripta
Volume2013
Issue numberT153
DOIs
Publication statusPublished - 28 Mar 2013

Fingerprint

thermal emission
Cavity
cavities
Electrodynamics
quantum electrodynamics
Quantum Circuits
Resonance Frequency
Photoluminescence
Dissipation
Electric Field
emitters
dissipation
photoluminescence
Calculate
operators
electric fields
Arbitrary
Operator
Interaction
atoms

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

Cite this

Ridolfo, A., Leib, M., Savasta, S., & Hartmann, M. J. (2013). Thermal emission in the ultrastrong-coupling regime. Physica Scripta, 2013(T153), [014053]. https://doi.org/10.1088/0031-8949/2013/T153/014053
Ridolfo, Alessandro ; Leib, M. ; Savasta, S. ; Hartmann, Michael J. / Thermal emission in the ultrastrong-coupling regime. In: Physica Scripta. 2013 ; Vol. 2013, No. T153.
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Ridolfo, A, Leib, M, Savasta, S & Hartmann, MJ 2013, 'Thermal emission in the ultrastrong-coupling regime', Physica Scripta, vol. 2013, no. T153, 014053. https://doi.org/10.1088/0031-8949/2013/T153/014053

Thermal emission in the ultrastrong-coupling regime. / Ridolfo, Alessandro; Leib, M.; Savasta, S.; Hartmann, Michael J.

In: Physica Scripta, Vol. 2013, No. T153, 014053, 28.03.2013.

Research output: Contribution to journalArticle

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AU - Hartmann, Michael J.

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Ridolfo A, Leib M, Savasta S, Hartmann MJ. Thermal emission in the ultrastrong-coupling regime. Physica Scripta. 2013 Mar 28;2013(T153). 014053. https://doi.org/10.1088/0031-8949/2013/T153/014053