Phase transition in spontaneous coherent state in Dicke model and retarded potentials |
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| Authors: | A.F. Sadreev A.P. Slivinsky |
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| Affiliation: | Krasnoyarsk State University, Krasnoyarsk 660036, USSR;Kirensky Institute of Physics, Siberian Department USSR, Academy of Sciences, Krasnoyarsk 660036, USSR |
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| Abstract: | In contrast with the results by Rzazewski, Wodkiewicz and Zakowicz who have taken only the A2-term, it is shown that addition of the retarted potentials to the Dicke Hamiltonian conserves the threshold condition of a phase transition. |
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