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Related papers: Trouble in Paradox

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The recent progress in string theory strongly suggests that formation and evaporation of black holes is a unitary process. This fact makes it imperative that we find a flaw in the semiclassical reasoning that implies a loss of information.…

General Relativity and Quantum Cosmology · Physics 2016-12-28 Samir D. Mathur

I try to argue that the only way out of the black hole information paradox is through a unified quantum field theory of gravity and other interactions. Superstring theory is especially interesting, since in a special limit, the classical…

High Energy Physics - Theory · Physics 2007-05-23 Horatiu-Stefan Nastase

The Black Hole enigma has produced many paradoxes. A consensus regarding the resolution of some conundrums such as the Naked Singularity Paradox and the Black Hole Lost Information Paradox (LIP) has still not been achieved. Black hole…

Astrophysics · Physics 2007-05-23 Mario Rabinowitz

Black holes have been implicated in two paradoxes that involve apparently non-unitary dynamics. According to Hawking's theory, information that is absorbed by a black hole is destroyed, and the originally pure state of a black hole is…

General Relativity and Quantum Cosmology · Physics 2025-12-09 Christoph Adami

The black hole information paradox tells us something important about the way quantum mechanics and gravity fit together. In these lectures I try to give a pedagogical review of the essential physics leading to the paradox, using mostly…

High Energy Physics - Theory · Physics 2009-01-28 Samir D. Mathur

During the past three decades investigators have unveiled a number of deep connections between physical information and black holes whose consequences for ordinary systems go beyond what has been deduced purely from the axioms of…

Quantum Physics · Physics 2008-11-26 Jacob D. Bekenstein

The black hole information paradox apparently indicates the need for a fundamentally new ingredient in physics. The leading contender is nonlocality. Possible mechanisms for the nonlocality needed to restore unitarity to black hole…

High Energy Physics - Theory · Physics 2008-11-26 Steven B. Giddings

We review some recent results obtained for black holes using effective field theory methods applied to quantum gravity, in particular the unique effective action. Black holes are complex thermodynamical objects that not only have a…

High Energy Physics - Theory · Physics 2022-02-08 Xavier Calmet , Folkert Kuipers

In this paper we argue that modelling the black hole event horizon as a fuzzy sphere we can get a possible solution to the black hole information loss paradox.

General Relativity and Quantum Cosmology · Physics 2009-12-04 C. A. S. Silva

The information loss paradox is widely regarded as one of the biggest open problems in theoretical physics. Several classical and quantum features must be present to enable its formulation. First, an event horizon is needed to justify the…

General Relativity and Quantum Cosmology · Physics 2024-08-20 Robert B. Mann , Sebastian Murk , Daniel R. Terno

The discovery of the fact that black holes radiate particles and eventually evaporate led Hawking to pose the well-known information loss paradox. This paradox caused a long and serious debate since it claims that the fundamental laws of…

High Energy Physics - Theory · Physics 2015-10-01 Masanori Hanada , Yoshifumi Hyakutake , Goro Ishiki , Jun Nishimura

Suppose a black hole forms from a pure quantum state $\ket{\psi}$. The black hole information loss paradox arises from semiclassical arguments suggesting that, even in a closed system, the process of black hole formation and evaporation…

General Relativity and Quantum Cosmology · Physics 2025-04-15 Kiran Adhikari

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…

High Energy Physics - Theory · Physics 2008-10-27 Samir D. Mathur

The central challenge in trying to resolve the firewall paradox is to identify excitations in the near-horizon zone of a black hole that can carry information without injuring a freely falling observer. By analyzing the problem from the…

High Energy Physics - Theory · Physics 2015-06-18 Ben Freivogel

In both classical and quantum world, information cannot appear or disappear. This fundamental principle, however, is questioned for a black hole, by the acclaimed "information loss paradox". Based on the conservation laws of energy, charge,…

General Relativity and Quantum Cosmology · Physics 2013-08-13 Baocheng Zhang , Qing-yu Cai , Ming-sheng Zhan , Li You

There still exist many confusions about the black hole information paradox and its resolution. We first give a precise formulation of the paradox, in four steps A-D. Then we examine several proposals for resolving the paradox. We note that…

High Energy Physics - Theory · Physics 2011-08-05 Samir D. Mathur

The black hole information paradox and the black hole entropy are currently extensively researched. The consensus about the solution of the information paradox is not yet reached, and it is not yet clear what can we learn about quantum…

General Relativity and Quantum Cosmology · Physics 2018-11-29 Ovidiu Cristinel Stoica

The crux of the black hole information paradox is related to the fact that the complete information about the initial state of a quantum field in a collapsing spacetime is not available to future asymptotic observers, belying the…

General Relativity and Quantum Cosmology · Physics 2016-02-05 Kinjalk Lochan , T. Padmanabhan

The aim of this work is to present the black hole information problem and discuss the assumptions and hypotheses necessary for its formulation. As the problem arises in the framework of semiclassical gravity, we first review the necessary…

General Relativity and Quantum Cosmology · Physics 2025-05-26 Thiago T. Bergamaschi

This article explains the resolution to the Hawking information loss paradox within the framework of the black-to-white hole scenario.

General Relativity and Quantum Cosmology · Physics 2024-11-06 Pierre Martin-Dussaud