TY - JOUR
T1 - Dissipative behavior of a quantum system interacting with a macroscopic medium
AU - Blasi, Raffaella
AU - Nakazato, Hiromichi
AU - Namiki, Mikio
AU - Pascazio, Saverio
PY - 1996/12/16
Y1 - 1996/12/16
N2 - The modified Coleman-Hepp (AgBr) model describes the interaction between an ultrarelativistic quantum mechanical particle Q and an JV-spin array D (a macroscopic medium in the N → ∞ limit). We prove that the energy operator for D essentially behaves as a Wiener process in the weak-coupling, macroscopic limit, in a restricted state space. No assumptions are made on the spectrum of the Hamiltonian of the macroscopic system D. The mechanism of appearance of such a stochastic process and its relevance to issues like dissipation and irreversibility are briefly discussed.
AB - The modified Coleman-Hepp (AgBr) model describes the interaction between an ultrarelativistic quantum mechanical particle Q and an JV-spin array D (a macroscopic medium in the N → ∞ limit). We prove that the energy operator for D essentially behaves as a Wiener process in the weak-coupling, macroscopic limit, in a restricted state space. No assumptions are made on the spectrum of the Hamiltonian of the macroscopic system D. The mechanism of appearance of such a stochastic process and its relevance to issues like dissipation and irreversibility are briefly discussed.
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U2 - 10.1016/S0375-9601(96)00768-2
DO - 10.1016/S0375-9601(96)00768-2
M3 - Article
AN - SCOPUS:0040879014
SN - 0375-9601
VL - 223
SP - 320
EP - 326
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 5
ER -