Thermal equilibrium in the jaynes–cummings model

J. D. Cresser*

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

56 Citations (Scopus)


The master equation currently used to describe a two level atom interacting with a single mode field damped by contact with a thermal reservoir (the damped Jaynes–Cummings model) is shown not to have, as its steady state solution, the expected canonical density operator prescribed by the general principles of statistical mechanics for a system in thermal equilibrium. A modified master equation is derived here which satisfies this requirement. Except for a reservoir at zero temperature, this master equation differs from that which is currently used in that the damping terms contain contributions due to the atom–field interaction.

Original languageEnglish
Pages (from-to)2187-2192
Number of pages6
JournalJournal of Modern Optics
Issue number11
Publication statusPublished - 1 Nov 1992


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