Unitary squeezing operatorsU andW in the Schrödinger and Heisenberg pictures
Tóm tắt
We study the unitary operatorsU andW, which have been recently introduced by Fan Hong-Yi and describe squeezed states. The corresponding Hamilton operators in the Schrödinger picture have a continuous or discrete eigenvalue spectrum, depending on the values of two free parameters. The study in the Heisenberg picture is simple in the case where the parameters are time dependent. Finally, we study a new operator of generalized form and we show that it describes squeezed states.
Tài liệu tham khảo
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