Black Holes in String TheoryConformal Field Models in String TheoryWe show that in string theory, due to non-perturbative effects, there are cases in which two states that semi-classically are completely different, are in fact the same. One state cannot be excited without exciting the other; ...
The increasing entropy of a black hole that evaporates by emitting Hawking radiation is at odds with the predictions of quantum mechanics. Juan Maldacena discusses the latest advances in solving this puzzle, known as the black hole information paradox....
Black holesWe discuss the use of information geometry in black hole physics and present the outcomes. We utilize thermodynamic (Ruppeiner) geometry defined on the state space of a given thermodynamic system in equilibrium. Stability and critical phenomena in black hole physics are captured by the ...
This article represents a lightning introduction to the black hole information paradox. Many details are omitted for brevity; longer articles will (eventually) explain them. Also, caution! the current understanding of the problem is so confused that the
However, recent advances in the geometry of spacetimes with singular metric show that there are ways to extend analytically the Einstein equation and other field equations beyond such singularities. This means that the information can get out of the singularity. In the case of charged black holes...
discovery of Hawking radiation being leaked from the edges of black holes, the effect of matter falling into black holes on outgoing Hawking radiation, and Hooft's idea that an object's information is bounced back into space as its gravitational field changes passing over a black hole's ...
In [39] it was argued that the evolution in time of a black hole is nonunitary (see =-=[40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50]-=- for recent discussions and implications). This is a troubling feature of black holes since it clashes with our understanding of quantum ...
摘要: The physical degrees of freedom and the dynamics of their evolution at the Planck length are investigated by performing thought experiments with black holes.关键词: classical and quantum mechanics, general physics black holes entropy quantization radiations scalar fields thermodynamics DOI: 10.2172...
The calculation relies on a treatment that is manifestly unitary from the outset, where probability conservation is guaranteed because black holes stimulate the emission of radiation in response to infalling matter. This stimulated radiation is non-thermal, and contains all of the information about ...