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Time-reversal invariance and irreversibility in time-asymmetric quantum mechanics

Castagnino, Mario and Gadella, Manuel and Lombardi, Olimpia (2005) Time-reversal invariance and irreversibility in time-asymmetric quantum mechanics. [Preprint]

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    Abstract

    The aim of this paper is to analyze the concepts of time-reversal invariance and irreversibility in the so-called 'time-asymmetric quantum mechanics'. We begin with pointing out the difference between these two concepts. On this basis, we show that irreversibility is not as tightly linked to the semigroup evolution laws of the theory -which lead to its non time-reversal invariance- as usually suggested. In turn, we argue that the irreversible evolutions described by the theory are coarse-grained processes.


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    Item Type: Preprint
    Keywords: quantum mechanics, irreversibility, time-reversal invariance, time-asymmetry
    Subjects: Specific Sciences > Physics > Quantum Mechanics
    Depositing User: Olimpia Lombardi
    Date Deposited: 23 Jan 2006
    Last Modified: 07 Oct 2010 11:13
    Item ID: 2595
    URI: http://philsci-archive.pitt.edu/id/eprint/2595

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