上一条:Pan, J. -W., De Zhang, Y. & Siu, G. G. Exact expressions of energy spectrum and partition function for quantum quadratic systems. Chinese Physics Letters 14, 241-244 (1997).
下一条:Ma, L., De Zhang, Y. -, Pan, J. -W. & Bin Wang, X. -. The General Exponential Quadratic Multimode Squeezed States. Modern Physics Letters A 10, 837-840 (1995).