منابع مشابه
Entropy and area.
The ground state density matrix for a massless free field is traced over the degrees of freedom residing inside an imaginary sphere; the resulting entropy is shown to be proportional to the area (and not the volume) of the sphere. Possible connections with the physics of black holes are discussed. ∗ This work was supported in part by the Director, Office of Energy Research, Office of High Energ...
متن کاملentropy , area , and strong subadditivity
The trace over the degrees of freedom located in a subset of the space transforms the vacuum state into a mixed density matrix with non zero entropy. This geometric entropy is believed to be deeply related to the entropy of black holes. Indeed, previous calculations in the context of quantum field theory, where the result is actually ultraviolet divergent, have shown that the geometric entropy ...
متن کاملFlux-area operator and black hole entropy
J. Fernando Barbero G.,* Jerzy Lewandowski, and Eduardo J. S. Villaseñor Instituto de Estructura de la Materia, CSIC, Serrano 123, 28006 Madrid, Spain Instytut Fizyki Teoretycznej, Uniwersytet Warszawski, ul. Hoża 69, 00-681 Warsaw, Poland Instituto Gregorio Millán, Grupo de Modelización y Simulación Numérica, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911 Leganés, Spain (R...
متن کاملGeometric Entropy, Area, and Strong Subadditivity
The trace over the degrees of freedom located in a subset of the space transforms the vacuum state into a mixed density matrix with non zero entropy. This geometric entropy is believed to be deeply related to the entropy of black holes. Indeed, previous calculations in the context of quantum field theory, where the result is actually ultraviolet divergent, have shown that the geometric entropy ...
متن کاملEntropy and Area in Loop Quantum Gravity
Black hole thermodynamics suggests that the maximum entropy that can be contained in a region of space is proportional to the area enclosing it rather than its volume. I argue that this follows naturally from loop quantum gravity and a result of Kolmogorov and Bardzin’ on the the realizability of networks in three dimensions. This represents an alternative to other approaches in which some sort...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1993
ISSN: 0031-9007
DOI: 10.1103/physrevlett.71.666