منابع مشابه
Killing Horizons Kill Horizon Degrees
Frequently it is argued that the microstates responsible for the Bekenstein–Hawking entropy should arise from some physical degrees of freedom located near or on the black hole horizon. In this Essay we elucidate that instead entropy may emerge from the conversion of physical degrees of freedom, attached to a generic boundary, into unobservable gauge degrees of freedom attached to the horizon. ...
متن کاملKilling Horizons
QED in two-dimensional Minkowski space contains a single physical state as seen either by an inertial observer or by a constantly accelerating Rindler observer. However in Feynman gauge if one takes a generic representative of the physical Minkowski state and traces over all left Rindler states, one does not arrive at the physical right Rindler state, but rather at a “density matrix” with negat...
متن کاملIsolated Horizon , Killing Horizon and Event Horizon
We consider space-times which in addition to admitting an isolated horizon also admit Killing horizons with or without an event horizon. We show that an isolated horizon is a Killing horizon provided either (1) it admits a stationary neighbourhood or (2) it admits a neighbourhood with two independent, commuting Killing vectors. A Killing horizon is always an isolated horizon. For the case when ...
متن کاملDoes killing adipocytes kill the bad macrophages?
The function and phenotype of immune cells are powerfully modulated by their biological milieu and immunologic context. Identifying the signals responsible for regulating context-specific function has provided key insights into immune regulation (1). Obesity induces an immune response with a strong inflammatory phenotype, in which adipose tissue expression and production of classic inflammatory...
متن کاملCurvature tensors on distorted Killing horizons and their algebraic classification
We consider generic static spacetimes with Killing horizons and study properties of curvature tensors in the horizon limit. It is determined that the Weyl, Ricci, Riemann and Einstein tensors are algebraically special and mutually aligned on the horizon. It is also pointed out that results obtained in the tetrad adjusted to a static observer in general differ from those obtained in a free-falli...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics D
سال: 2006
ISSN: 0218-2718,1793-6594
DOI: 10.1142/s0218271806009571