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Cited by 300Quantum Electrodynamics and Casimir EffectQuantum Information and CryptographyBlack Holes and Theoretical Physics

Unruh effect in quantum information beyond the single-mode approximation

Open access
Bruschi, David E., Louko, Jorma, Martín-Martínez, Eduardo, Dragan, Andrzej, Fuentes, Ivette·2010·Physical Review A
DOI 10.1103/physreva.82.042332
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Abstract

We address the validity of the single-mode approximation that is commonly invoked in the analysis of entanglement in noninertial frames and in other relativistic quantum-information scenarios. We show that the single-mode approximation is not valid for arbitrary states, finding corrections to previous studies beyond such approximations in the bosonic and fermionic cases. We also exhibit a class of wave packets for which the single-mode approximation is justified subject to the peaking constraints set by an appropriate Fourier transform.

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  • The Minkowski vacuum state for a free scalar field can be expressed as a two-mode squeezed state of the Rindler vacuum.

    “The Minkowski vacuum state for a free scalar field can be expressed as a two-mode squeezed state of the Rindler vacuum”

    From Quantum speed limit time in a relativistic frame (2022) · cites this paper as [3]

  • The Minkowski and Unruh modes have a common vacuum state.

    “It is important to mention that the Minkowski and the Unruh modes have common vacuum state, i.e., | 0 Ω 〉 M = | 0 Ω 〉 U .”

    From Quantum speed limit time in a relativistic frame (2022) · cites this paper as [3]

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Research works printed but not linked: 4

  1. G. Adesso and I. Fuentes-Schuller, Quantum Inf. Comput. 9, 0657 (2009).
  2. J. L. Ball, I. Fuentes-Schuller, and F. P. Schuller, Phys. Lett. A 359, 550 (2006). · DOI
  3. K. Brádler, Phys. Rev. A 75, 022311 (2007). · DOI
  4. Q. Pan and J. Jing, Phys. Rev. D 78, 065015 (2008). · DOI

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Related

Authors
Bruschi, D. E., Louko, J., Martín-Martínez, E., Dragan, A., & Fuentes, I.
Affiliations
  • University of Nottingham (GB)
  • Consejo Superior de Investigaciones Científicas (ES)
  • University of Warsaw (PL)
ORCID
Venue
Physical Review A
Publisher
American Physical Society (APS)
Published
2010-10-26
Volume
82
Issue
4
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
DOI
10.1103/physreva.82.042332
OpenAlex
W1973844372
Cited by
300
References
39
Citations by year
2026: 23 · 2025: 19 · 2024: 18 · 2023: 23 · 2022: 21 · 2021: 10 · 2020: 14 · 2019: 20 · 2018: 17 · 2017: 18 · 2016: 14 · 2015: 10 · 2014: 18 · 2013: 24 · 2012: 32
FWCI
12.86
Type
journal article
Language
en
Open access
Licence
link.aps.org/licenses/aps-default-license (vor)
Locations
  • Physical Review A (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, other-oa)
  • ePrints Soton (University of Southampton) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Ministerio de Ciencia e Innovación
  • Engineering and Physical Sciences Research Council (EP/G00496X/2, EP/G00496X/1)
  • Science and Technology Facilities Council (ST/G000417/1)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Electrodynamics and Casimir Effect
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Black Holes and Theoretical Physics
Keywords
Unruh effect, single-mode approximation, relativistic quantum information, quantum field theory in curved spacetime, wave packets

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