Entanglement and nonunitary evolution

Ram Brustein; Martin B. Einhorn; Amos Yarom

doi:10.1088/1126-6708/2007/04/086

Entanglement and nonunitary evolution

Ram Brustein, Martin B. Einhorn, Amos Yarom

Department of Physics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We consider a collapsing relativistic spherical shell for a free quantum field. Once the center of the wavefunction of the shell passes a certain radius r_s, the degrees of freedom inside r_s are traced over. We show that an observer outside this region will determine that the evolution of the system is nonunitary. We argue that this phenomenon is generic to entangled systems, and discuss a possible relation to black hole physics.

Original language	English
Article number	086
Journal	Journal of High Energy Physics
Volume	2007
Issue number	4
DOIs	https://doi.org/10.1088/1126-6708/2007/04/086
State	Published - 1 Apr 2007

Keywords

Black holes
Quantum dissipative systems

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1088/1126-6708/2007/04/086

Cite this

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abstract = "We consider a collapsing relativistic spherical shell for a free quantum field. Once the center of the wavefunction of the shell passes a certain radius rs, the degrees of freedom inside rs are traced over. We show that an observer outside this region will determine that the evolution of the system is nonunitary. We argue that this phenomenon is generic to entangled systems, and discuss a possible relation to black hole physics.",

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AB - We consider a collapsing relativistic spherical shell for a free quantum field. Once the center of the wavefunction of the shell passes a certain radius rs, the degrees of freedom inside rs are traced over. We show that an observer outside this region will determine that the evolution of the system is nonunitary. We argue that this phenomenon is generic to entangled systems, and discuss a possible relation to black hole physics.

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KW - Quantum dissipative systems

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DO - 10.1088/1126-6708/2007/04/086

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Entanglement and nonunitary evolution

Abstract

Keywords

ASJC Scopus subject areas

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