Fuzzballs and the information paradox: A Summary and conjectures
By Samir D. Mathur. 2008
177 citations recorded by the source corpus.
The black hole information paradox is one of the most important issues in theoretical physics. We review some recent progress using string theory in understanding the nature of black hole microstates. For all cases where these microstates have been constructed, one finds that they are horizon sized `fuzzballs'. Most computations are for extremal states, but recently one has been able to study a special family of non-extremal microstates, and see `information carrying radiation' emerge from these gravity solutions. We discuss how the fuzzball picture can resolve the information paradox. We use the nature of fuzzball states to make some conjectures on the dynamical aspects of black holes, observing that the large phase space of fuzzball solutions can make the black hole more `quantum' than assumed in traditional treatments.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/a0c25de57f880fbf921a7dc4b7648d38ceb31ea6
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Citations in the corpus
- Nonviolent nonlocality (2012, background): “The fuzzball scenario[6] appears to be in the same category; the horizon is replaced by stringy states, carrying the quantum information of the would-be black hole.”
- The AdS/CFT correspondence (2014, background): “tability, depending on what feature one wants to focus on. Entanglement entropy of a given subsystem, dened as the Von Neumann entropy of a 62 One alternative is the earlier ‘fuzzball’ proposal; see [154] for review. This describes black hole microstates in terms of smooth horizonless geometries (on”
- An infalling observer in AdS/CFT (2012, background): “lence suggests that there is nothing special about the horizon of a large black hole, there have been several speculations that quantum gravity effects cause the interior to be modified into a fuzzball [1, 2, 3, 4, 5], and more recently, that the horizon of an “old black hole” is replaced by a firewall”
- Replica wormholes and the black hole interior (2019, background): “rmholes are only an eective descripanalogy to the microstate overlaps discussed in section 2.3 would be to compute the averages of individual density matrix elements, not purities. 43For reviews see [91, 92]. For a critique of this program see [93]. 44We thank Phil Saad for discussions on this point”
- Horava-Lifshitz Cosmology (2009, background): “Even in GR (and its quantum version as advocated in string theory) it was advocated, motivated by the black-hole information studies, that decoupling scales are background-dependent [14].”
- Transcending the ensemble: baby universes, spacetime wormholes, and the order and disorder of black hole information (2020, background): “black hole.26 Furthermore, just as there is a particular gauge (or class of gauges) realizing ER=EPR-like scenarios, it seems likely that one can also nd gauges realizing fuzzball scenarios (see e.g. [17,19,24,29,125{129], the non-violent non-locality proposal27 [20,22,30]), proposals emphasizing th”
- Tests for the existence of black holes through gravitational wave echoes (2017, unknown): “Fuzzballs ClePhOs 7 7 7 ∼ [5, 6] (but see [110–113]) (but see [23,24,114])”