183 citations
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Showing 2013 · quant-phShow all
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quant-ph2013★ 84 cited
Comparative quantum and semi-classical analysis of Atom-Field Systems II: Chaos and regularity
M. A. Bastarrachea-Magnani, S. Lerma-Hernandez, J. G. Hirsch
The non-integrable Dicke model and its integrable approximation, the Tavis-Cummings (TC) model, are studied as functions of both the coupling constant and the excitation energy. Th…
quant-ph2013★ 103 cited
Comparative quantum and semi-classical analysis of Atom-Field Systems I: density of states and excited-state quantum phase transitions
M. A. Bastarrachea-Magnani, S. Lerma-Hernandez, J. G. Hirsch
We study the non-integrable Dicke model, and its integrable approximation, the Tavis-Cummings model, as functions of both the coupling constant and the excitation energy. Excited-s…