The multiquantum q-deformed Jaynes–Cummings model with the counter-rotating terms

C.F. Lo and K.L. Liu

Physica A: Statistical Mechanics and its Applications, 1999, vol. 271, issue 3, 405-410

Abstract: In this paper we have investigated the eigenenergy spectrum of the k-quantum q-deformed Jaynes–Cummings (JC) model without the rotating-wave approximation (RWA). Our analysis has shown that the k-quantum q-deformed JC model without the RWA does not have eigenstates in the Hilbert space spanned by the photon number states, i.e. the model becomes ill-defined. Hence, the k-quantum q-deformed JC model without the RWA is qualitatively different from the RWA counterpart which is valid for all values of k and the coupling parameter. In other words, the counter-rotating terms do drastically alter the nature of the system.

Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:271:y:1999:i:3:p:405-410

DOI: 10.1016/S0378-4371(99)00214-9

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