dorsal/arxiv
View SchemaThermodynamics of Coherent States and Black Hole Entropy
| Authors | A. G. Bashkirov, A. D. Sukhanov |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0104083 |
| URL | https://arxiv.org/abs/quant-ph/0104083 |
Abstract
Entropy and temperature of a system in a coherent state are naturally defined on a base of a density matrix of the system. As an example, entropy and temperature are evaluated for coherent states of a harmonic oscillator and quantum field described by the Klein--Gordon--Fock equation with a source term. It is shown, in particular, that the temperature of the coherent oscillator in a ground state coincides with the effective temperature of a harmonic oscillator being in contact with a heat bath (Bloch formula) when the bath temperature tends to zero. The Bekenstein--Hawking entropy of a black hole can also be interpreted as an entropy of coherent states of a physical vacuum in the vicinity of a horizon surface.
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"abstract": "Entropy and temperature of a system in a coherent state are naturally defined\non a base of a density matrix of the system. As an example, entropy and\ntemperature are evaluated for coherent states of a harmonic oscillator and\nquantum field described by the Klein--Gordon--Fock equation with a source term.\nIt is shown, in particular, that the temperature of the coherent oscillator in\na ground state coincides with the effective temperature of a harmonic\noscillator being in contact with a heat bath (Bloch formula) when the bath\ntemperature tends to zero. The Bekenstein--Hawking entropy of a black hole can\nalso be interpreted as an entropy of coherent states of a physical vacuum in\nthe vicinity of a horizon surface.",
"arxiv_id": "quant-ph/0104083",
"authors": [
"A. G. Bashkirov",
"A. D. Sukhanov"
],
"categories": [
"quant-ph"
],
"title": "Thermodynamics of Coherent States and Black Hole Entropy",
"url": "https://arxiv.org/abs/quant-ph/0104083"
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