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arXiv:quant-ph/0304119

Is quantum entanglement invariant in special relativity?

Doyeol Ahn, H. J. Lee, Sung Woo Hwang, M. S. Kim

Published Apr 17, 2003• 2 citations
arXivHTMLPDF

Abstract

Quantum entanglements are of fundamental importance in quantum physics ranging from the quantum information processing to the physics of black hole. Here, we show that the quantum entanglement is not invariant in special relativity. This suggests that nearly all aspects of quantum information processing would be affected significantly when relativistic effects are considered because present schemes are based on the general assumption that entanglement is invariant. There should be additional protocols to compensate the variances of entanglement in in quantum information processing. Furthermore, extending our results to general relativity may provide clues to the fate of the information contained in an entangled Hawking pair inside and outside the event horizon as black hole evaporates.

DOI
10.48550/arxiv.quant-ph/0304119

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Quantum entanglements are of fundamental importance in quantum physics ranging from the quantum information processing to the physics of black hole. Here, we show that the quantum entanglement is not invariant in special relativity. This suggests that nearly all aspects of quantum information processing would be affected significantly when relativistic effects are considered because present schemes are based on the general assumption that entanglement is invariant. There should be additional protocols to compensate the variances of entanglement in in quantum information processing. Furthermore, extending our results to general relativity may provide clues to the fate of the information contained in an entangled Hawking pair inside and outside the event horizon as black hole evaporates.
We consider black-hole evaporation from a hidden-variables perspective. It is suggested that Hawking information loss, associated with the transition from a pure to a mixed quantum state, is compensated for by the creation of deviations from Born-rule probabilities outside the event horizon. The resulting states have non-standard or 'nonequilibrium' distributions of hidden variables, with a specific observable signature - a breakdown of the sinusoidal modulation of quantum probabilities for two-state systems. Outgoing Hawking radiation is predicted to contain statistical anomalies outside the domain of the quantum formalism. Further, it is argued that even for a macroscopic black hole, if one half of an entangled EPR-pair should fall behind the event horizon, the other half will develop similar statistical anomalies. We propose a simple rule, whereby the relative entropy of the nonequilibrum (hidden-variable) distribution generated outside the horizon balances the increase in von Neumann entropy associated with the pure-to-mixed transition. It is argued that there are relationships between hidden-variable and von Neumann entropies even in non-gravitational physics. We consider the possibility of observing anomalous polarisation probabilities, in the radiation from primordial black holes, and in the atomic cascade emission of entangled photon pairs from black-hole accretion discs.
This work examines a specific premise in the black-hole information problem: the assertion that complete quantum evolution preserves arbitrary initial quantum distinctions through the full formation and evaporation of an actual four-dimensional black hole possessing a genuine event horizon. The paper does not argue that fundamental information destruction occurs. It does not reject unitary quantum mechanics or the substantial mathematical progress represented by holography, quantum error correction, entanglement islands, replica wormholes, Page-curve calculations, asymptotic observable algebras, or gravitational reconstruction. Instead, it asks what establishes that the scope of such results reaches the complete physical black-hole process for which global preservation is asserted. For a registered ordinary future-directed causal route from strictly inside a genuine event horizon to the stipulated exterior future, the event-horizon and Structural Flow translation premises imply that ordinary outward Cascade and same-route Authorization do not occur. This route result does not determine the global fate of quantum information. The restricted horizon-facing premises entail neither guaranteed global quantum-information preservation nor fundamental global information destruction. The complete physical fate therefore remains dependent on additional physics-owned premises. The work distinguishes global preservation from restricted exterior recoverability. A preservation claim must specify the physical target process, admitted quantum input family, governing dynamics, physically complete output system, relevant quantum-coherence burden, and applicability of the mathematical result to the actual gravitational regime being claimed. Recovery from Hawking radiation alone is not privileged as the only admissible proof route, and inability to recover information from a restricted radiation subsystem is not sufficient to establish fundamental loss. A public falsification and reopening protocol accompanies the paper. It separates model- and code-level advances, physical preservation or loss results, event-horizon domain-translation failures, and genuine foundational Structural Flow counterderivations. A black-hole-specific failure does not automatically reopen universal Structural Flow, the Universal Kernel, or the TOE. The release also includes a machine companion and a consolidated Lean formal append evaluated with the unchanged Structural_Flow_Universal_Kernel_v1.0.lean. The supplied Lean Web execution record reported all 68 expected theorem checkpoints from the integrated source with no compiler errors reported. The consolidated BH-EH source contains 69 theorem declarations. Machine closure is explicitly limited to the encoded conditional logical scope. The formal layer does not establish the existence of an actual event horizon, the physical validity of the Structural Flow translation, complete quantum-gravitational dynamics, or the global information fate of real black holes. This coordinated package contains the scientific anchor, public falsification/reopening protocol, machine companion, scoped BH-EH formal append, and frozen Universal Kernel.
This work examines a specific premise in the black-hole information problem: the assertion that complete quantum evolution preserves arbitrary initial quantum distinctions through the full formation and evaporation of an actual four-dimensional black hole possessing a genuine event horizon. The paper does not argue that fundamental information destruction occurs. It does not reject unitary quantum mechanics or the substantial mathematical progress represented by holography, quantum error correction, entanglement islands, replica wormholes, Page-curve calculations, asymptotic observable algebras, or gravitational reconstruction. Instead, it asks what establishes that the scope of such results reaches the complete physical black-hole process for which global preservation is asserted. For a registered ordinary future-directed causal route from strictly inside a genuine event horizon to the stipulated exterior future, the event-horizon and Structural Flow translation premises imply that ordinary outward Cascade and same-route Authorization do not occur. This route result does not determine the global fate of quantum information. The restricted horizon-facing premises entail neither guaranteed global quantum-information preservation nor fundamental global information destruction. The complete physical fate therefore remains dependent on additional physics-owned premises. The work distinguishes global preservation from restricted exterior recoverability. A preservation claim must specify the physical target process, admitted quantum input family, governing dynamics, physically complete output system, relevant quantum-coherence burden, and applicability of the mathematical result to the actual gravitational regime being claimed. Recovery from Hawking radiation alone is not privileged as the only admissible proof route, and inability to recover information from a restricted radiation subsystem is not sufficient to establish fundamental loss. A public falsification and reopening protocol accompanies the paper. It separates model- and code-level advances, physical preservation or loss results, event-horizon domain-translation failures, and genuine foundational Structural Flow counterderivations. A black-hole-specific failure does not automatically reopen universal Structural Flow, the Universal Kernel, or the TOE. The release also includes a machine companion and a consolidated Lean formal append evaluated with the unchanged Structural_Flow_Universal_Kernel_v1.0.lean. The supplied Lean Web execution record reported all 68 expected theorem checkpoints from the integrated source with no compiler errors reported. The consolidated BH-EH source contains 69 theorem declarations. Machine closure is explicitly limited to the encoded conditional logical scope. The formal layer does not establish the existence of an actual event horizon, the physical validity of the Structural Flow translation, complete quantum-gravitational dynamics, or the global information fate of real black holes. This coordinated package contains the scientific anchor, public falsification/reopening protocol, machine companion, scoped BH-EH formal append, and frozen Universal Kernel.