### Abstract

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.

Original language | English |
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Pages (from-to) | 320-326 |

Number of pages | 7 |

Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |

Volume | 223 |

Issue number | 5 |

DOIs | |

Publication status | Published - 1996 Dec 16 |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*Physics Letters, Section A: General, Atomic and Solid State Physics*,

*223*(5), 320-326. https://doi.org/10.1016/S0375-9601(96)00768-2

**Dissipative behavior of a quantum system interacting with a macroscopic medium.** / Blasi, Raffaella; Nakazato, Hiromichi; Namiki, Mikio; Pascazio, Saverio.

Research output: Contribution to journal › Article

*Physics Letters, Section A: General, Atomic and Solid State Physics*, vol. 223, no. 5, pp. 320-326. https://doi.org/10.1016/S0375-9601(96)00768-2

}

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.

UR - http://www.scopus.com/inward/record.url?scp=0040879014&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0040879014&partnerID=8YFLogxK

U2 - 10.1016/S0375-9601(96)00768-2

DO - 10.1016/S0375-9601(96)00768-2

M3 - Article

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

SN - 0375-9601

IS - 5

ER -