Black holes and information: A new take on an old paradox

Bryan, K.L.H.; Medved, A. J. M.

doi:10.48550/arxiv.1603.07569

Cited by 3 publications

(4 citation statements)

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“…This is a grave violation if performed on a time slice. However, it is a natural feature of time travel, thus supporting the argument of [17].…”

Section: Scrambling For Informationsupporting

confidence: 59%

“…There are issues with this rescue attempt. One potential issue is that while the firewall saves monogamy, the cost is that it discards the equivalence principle [16,17]. Moreover, while entanglement is a fragile quantum resource, perfect disentanglement, which takes an entangled state into the direct product of its reduced states…”

Section: Scrambling For Informationmentioning

confidence: 99%

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The Information Recovery Problem

Baccetti

Husain

Terno

2016

Entropy

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“…This is a grave violation if performed on a time slice. However, it is a natural feature of time travel, thus supporting the argument of [17].…”

Section: Scrambling For Informationsupporting

confidence: 59%

Section: Scrambling For Informationmentioning

confidence: 99%

The Information Recovery Problem

Baccetti

Husain

Terno

2016

Entropy

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“…Let |Ψ t=0 be a known quantum state such that predicate function ∈ (|Ψ t=0 , P), where P is the closed linear subspace of H representing proposition P , returns the value which is 1 (or 0). In opposition, given that (under the simplest models of black hole evaporation) state |Ψ t=T is a mixed state that can be treated as a random, unknown pure quantum state [21], predicate ∈ on tuple (|Ψ t=T , P) must return neither true nor false. Consequently, the process (29) implies that the truth values of experimental quantum propositions are lost in black holes:…”

Section: Black Hole Evaporation Implies the Power Over The Pastmentioning

confidence: 99%

No-cloning implies unalterability of the past

Bolotin¹

2019

Preprint

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A common way of stating the non-cloning theorem -one of distinguishing characteristics of quantum theory -is that one cannot make a copy of an arbitrary unknown quantum state. Even though this theorem is an important part of the ongoing discussion of the nature of a quantum state, the role of the theorem in the logical-algebraic approach to quantum theory has not yet been systematically studied. According to the standard point of view (which is in line with the logical tradition), quantum cloning amounts to two classical rules of inference, namely, monotonicity and idempotency of entailment. One can conclude then that the whole of quantum theory should be described through a logic wherein these rules do not hold, which is linear logic. However, in accordance with a supervaluational semantics (that allows one to retain all the theorems of classical logic while admitting "truth-value gaps"), quantum cloning necessitates the permanent loss of the truth values of experimental quantum propositions which violates the unalterability of the past. The present paper demonstrates this.

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“…Hence they conjectured ER=EPR. One can also turn the argument around -any two EPR correlated particles are also connected by some sort of ER bridge (see also [132][133][134][135]).…”

Section: Er=eprmentioning

confidence: 99%

Black Holes: Eliminating Information or Illuminating New Physics?

Chakraborty

Lochan

2017

Universe

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Black holes, initially thought of as very interesting mathematical and geometric solutions of general relativity, over time, have come up with surprises and challenges for modern physics. In modern times, they have started to test our confidence in the fundamental understanding of nature. The most serious charge on the black holes is that they eat up information, never to release and subsequently erase it. This goes absolutely against the sacred principles of all other branches of fundamental sciences. This realization has shaken the very base of foundational concepts, both in quantum theory and gravity, which we always took for granted. Attempts to get rid of of this charge, have led us to crossroads with concepts, hold dearly in quantum theory. The sphere of black hole's tussle with quantum theory has readily and steadily grown, from the advent of the Hawking radiation some four decades back, into domain of quantum information theory in modern times, most aptly, recently put in the form of the firewall puzzle. Do black holes really indicate something sinister about their existence or do they really point towards the troubles of ignoring the fundamental issues, our modern theories are seemingly plagued with? In this review, we focus on issues pertaining to black hole evaporation, the development of the information loss paradox, its recent formulation, the leading debates and promising directions in the community.Keywords: black hole physics; information loss paradox; quantum fields in curved background Being Simple is ComplexThe twentieth century was a time in theoretical physics when many innovative, visionary ideas gained firm ground. Experimental verifications of many remarkable ideas were, deservingly, celebrated as the decisive steps towards building a concrete understanding of nature. From the first decades of the century, two radically different but conceptually very profound ideas came out: Relativity-viewing space and time as a geometric fabric acting as stage on which everything else takes place-and Quantum theory-acknowledging the wave character of everything in the universe. These two theories came up with revolutionary and also beautiful insights which kept getting ratified time and again (without fail till date) by the most sophisticated experiments. However, they also did come with some radically counter-intuitive ideas at their cores. With the advent and the subsequent triumph of the quantum theory, we realized that determinism is not an intrinsic property of nature at the fundamental level and one needs to adopt the probabilistic interpretation for the most fundamental description. This feature of the new realization alone has caused certain unrest with the quantum theory, and has raised many discussion and proposals related to this particular character of the theory [1][2][3][4][5][6][7][8]. Relativity on the other hand, very beautifully describes gravity as an artifact of curvature of a fabric named the spacetime. Describing gravity as the curvature of the spacetime remarkably gives...

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Black holes and information: A new take on an old paradox

Cited by 3 publications

References 0 publications

The Information Recovery Problem

The Information Recovery Problem

No-cloning implies unalterability of the past

Black Holes: Eliminating Information or Illuminating New Physics?

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