Acta Optica Sinica, Volume. 16, Issue 1, 68(1996)
Two-Mode Squeezed Number States and Squeeze Symmetry in the Two-Mode Parametric Amplifier
The two-mode squeezed number states as the common eigenstates of the parametric amplifier Hamiltonian and the generalized two-mode squeeze operator are found. The concepts of the squeeze charge and the squeeze symmetry are introduced to explain the invariance of the Hamiltonian in the transformation of the one dimensional unitary group generated by the generalized squeeze operator.
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[in Chinese], [in Chinese], [in Chinese]. Two-Mode Squeezed Number States and Squeeze Symmetry in the Two-Mode Parametric Amplifier[J]. Acta Optica Sinica, 1996, 16(1): 68