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Journal of Hunan University of Arts and Science

Anti-bunching effect of the field in multiphoton Tavis-Cummings model

LU Dao-ming

Published Jan 1, 2009• 0 citations
OpenAlex

Abstract

Using Tavis-Cummings model, the anti-bunching effect of the field in interaction of two coupling two-level atoms with coherent state light field through multiphoton transition was studied. The influences of coupling constants between atoms and intial mean photon number of field on anti-bunching effect of the field were discussed. The results obtained by the numerical method show that with increasing of intial mean photon number of field the anti-bunching effect of the field is getting stronger, and with increasing of coupling constant between atoms the anti-bunching effect of the field is getting weaker.

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Using Tavis-Cummings model, the anti-bunching effect of the field in interaction of two coupling two-level atoms with coherent state light field through multiphoton transition was studied. The influences of coupling constants between atoms and intial mean photon number of field on anti-bunching effect of the field were discussed. The results obtained by the numerical method show that with increasing of intial mean photon number of field the anti-bunching effect of the field is getting stronger, and with increasing of coupling constant between atoms the anti-bunching effect of the field is getting weaker.
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Anti-bunching effect of the field in the system of a two-mode field initially in an SU(2) coherent state resonantly interacting with a three-level Λ-type atom are investigated by means of quantum theory and nu-merical calculations.The dependence of the anti-bunching effect on the total photon of the tow-mode,the parti-tion parameter,the coupling constant and the atomic initial state is discussed for two cases:(1) no state-selective atomic measurement;(2) direct state-selective atomic measurement.The results indicate: the anti-bunching effect of the two mode of the field exhibits when the two coupling coefficients are the same;a mode anti-bunching ef-fect is distinctly enhanced when the atom is initially on the lower level or direct state-selective measurement is performed on the atom;the anti-bunching effect of the two mode of the field is distinctly enhanced when the to-tal photon number of the two-mode is decreased;the anti-bunching effect of the field does not change over time when the two coupling coefficients are the same and the state-selective measurement is performed on the atom.