Fan, Hong-yi; Xu, Xue-xiang; Hu, Li-yun - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 10, pp. 2014-2019
Hellmann–Feynman theorem for ensemble average, we derive its mean energy and find the ratio of the mean energies contributed …We study statistical properties of the Hamiltonian (H=ωa†a+κa†N+1+κN+1a) generating phase state. Using the generalized …