The multiquantum intensity-dependent Jaynes–Cummings model with the counterrotating terms

C.f Lo, K.l Liu and K.m Ng

Physica A: Statistical Mechanics and its Applications, 1999, vol. 265, issue 3, 557-564

Abstract: In this paper we have investigated the eigen energy spectrum of the k-photon intensity-dependent Jaynes–Cummings (JC) model without the rotating-wave approximation (RWA). Our analysis shows that for k⩾2 the k-photon intensity-dependent 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-photon intensity-dependent JC model without the RWA is qualitatively different from the RWA counterpart which is valid for all values of k and the coupling parameter. As a consequence, previous studies of the effects of the counterrotating terms in the k-photon intensity-dependent JC model for k⩾2 are all invalid.

Keywords: Intensity-dependent Jaynes–Cummings model; Counterrotating terms; Photon number states (search for similar items in EconPapers)
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:265:y:1999:i:3:p:557-564

DOI: 10.1016/S0378-4371(98)00649-9

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