We study a modified version of the ''AgBr'' Hamiltonian and analyze its weak-coupling, macroscopic limit, obtaining an exponential behavior at all times for a certain propagator. Such a behavior, yielding a ''probability dissipation'', is closely related to the phenomenon of decoherence (loss of quantum mechanical coherence). We stress the central relevance of the problem of dissipation to the quantum measurement theory and to the general topic of decoherence.

Decoherence, dissipation and exponential decay

PASCAZIO, Saverio
1996-01-01

Abstract

We study a modified version of the ''AgBr'' Hamiltonian and analyze its weak-coupling, macroscopic limit, obtaining an exponential behavior at all times for a certain propagator. Such a behavior, yielding a ''probability dissipation'', is closely related to the phenomenon of decoherence (loss of quantum mechanical coherence). We stress the central relevance of the problem of dissipation to the quantum measurement theory and to the general topic of decoherence.
1996
0-444-82219-4
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/67354
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