ua nt - p h / 01 04 08 3 v 2 3 1 O ct 2 00 1 THERMODYNAMICS OF COHERENT STATES AND BLACK HOLE ENTROPY
نویسنده
چکیده
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.
منابع مشابه
ua nt - p h / 99 08 04 5 v 1 1 3 A ug 1 99 9 A novel realization of the Calogero - Moser scattering states as coherent states
A novel realization is provided for the scattering states of the N -particle Calogero-Moser Hamiltonian. They are explicitly shown to be the coherent states of the singular oscillators of the Calogero-Sutherland model. Our algebraic treatment is straightforwardly extendable to a large number of few and many-body interacting systems in one and higher dimensions. PACS: 03.65.-w, 03.65.Ge Typeset ...
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تاریخ انتشار 2001