Entanglement in curved spacetimes and cosmology

Martin-Martinez, E and Menicucci, N 2014, 'Entanglement in curved spacetimes and cosmology', Classical and Quantum Gravity, vol. 31, no. 21, 214001, pp. 1-41.

Document type: Journal Article
Collection: Journal Articles

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Title Entanglement in curved spacetimes and cosmology
Author(s) Martin-Martinez, E
Menicucci, N
Year 2014
Journal name Classical and Quantum Gravity
Volume number 31
Issue number 21
Article Number 214001
Start page 1
End page 41
Total pages 41
Publisher Institute of Physics Publishing
Abstract We review recent results regarding entanglement in quantum fields in cosmological spacetimes and related phenomena in flat spacetime such as the Unruh effect. We begin with a summary of important results about field entanglement and the mathematics of Bogoliubov transformations that is very often used to describe it. We then discuss the Unruh-DeWitt detector model, which is a useful model of a generic local particle detector. This detector model has been successfully used as a tool to obtain many important results. In this context we discuss two specific types of these detectors: a qubit and a harmonic oscillator. The latter has recently been shown to have important applications when one wants to probe nonperturbative physics of detectors interacting with quantum fields. We then detail several recent advances in the study and application of these ideas, including echoes of the early universe, entanglement harvesting, and a nascent proposal for quantum seismology.
Subject Quantum Information, Computation and Communication
Field Theory and String Theory
Keyword(s) cosmology
relativistic quantum information
DOI - identifier 10.1088/0264-9381/31/21/214001
Copyright notice © 2014 IOP Publishing Ltd.
ISSN 0264-9381
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Citation counts: TR Web of Science Citation Count  Cited 31 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 21 times in Scopus Article | Citations
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