Effectively classical quantum states for open systems
نویسندگان
چکیده
Notions of robust and " classical " states for an open quantum system are introduced and discussed in the framework of the isometric-sweeping decomposition of trace class operators. Using the predictability sieve proposed by Zurek, " quasi-classical " states are defined. A number of examples illustrating how the " quasi-classical " states correspond to classical points in phase space connected with the measuring apparatus are presented.
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تاریخ انتشار 2008