The Wehrl classical information entropy of random phase negative binomial states (RPNBS) is investigated, and their Wigner function evolution in the thermal environment is also discussed. It is shown that the evolution of the RPNBS in the thermal channel can be roughly regarded as the shift of the parameters ε and α0 of the RPNBS.
In this paper, we investigate the non-classicality of excited binomial states by analyzing the partial negativity of the Wigner function. The volume of the negative part of the Wigner function is numerically calculated for some single-photon-excited binomial states. The dynamical behaviors of the Wigner distribution of excited binomial states in the thermal channel are investigated.
With the aid of symbolic computation, nine families of new doubly periodic solutions are obtained for the (2+1)-dimensional long-wave and short-wave resonance interaction (LSRI) system in terms of the Weierstrass elliptic function method. Moreover Jacobian elliptic function solutions and solitary wave solutions are also given as simple limits of doubly periodic solutions.
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