Intrinsic mechanism for entropy change in classical and quantum evolution.
نویسندگان
چکیده
It is shown that the existence of a time operator in the Liouville space representation of both classical and quantum evolution provides a mechanism for effective entropy change of physical states. In particular, an initially effectively pure state can evolve under the usual unitary evolution to an effectively mixed state.
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ورودعنوان ژورنال:
- Physical review. A, Atomic, molecular, and optical physics
دوره 52 1 شماره
صفحات -
تاریخ انتشار 1995