Effectively classical quantum states for open systems

Abstract

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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References in corpus (2)

• Pointer states via Decoherence in a Quantum Measurement
• Structure of the Algebra of Effective Observables in Quantum Mechanics

Cited by in corpus (3)

• Decoherence, einselection, and the quantum origins of the classical
• Measurement master equation
• Decoherence induced continuous pointer states