Lensing of vacuum entanglement near Schwarzschild black holes

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Caribé, João G.A.Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, CEP 22290-180, Brazil (author)

Lensing of vacuum entanglement near Schwarzschild black holes

Article/chapterEnglish2023

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American Physical Society (APS),2023
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LIBRIS-ID:oai:DiVA.org:kth-335303
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-335303URI
https://doi.org/10.1103/PhysRevD.108.025016DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-226944URI

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Language:English
Summary in:English

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QC 20240301
An important feature of Schwarzschild spacetime is the presence of orbiting null geodesics and caustics. Their presence implies strong gravitational lensing effects for matter and radiation, i.e., for excitations of quantum fields. Here, we raise the question whether the lensing manifests itself also in the vacuum of quantum fields, namely by lensing the distribution of vacuum entanglement. To explore this possibility, we use the method of entanglement harvesting, where initially unentangled localized quantum systems are temporarily coupled to the field at different locations. We find that for the Boulware, Hartle-Hawking and Unruh vacua in 3+1-dimensional Schwarzschild spacetime, the harvesting of vacuum entanglement is indeed greatly amplified near caustics. In particular, we establish that preexisting vacuum entanglement can also be harvested for lightlike separations.

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NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
NATURVETENSKAP Fysik Subatomär fysik hsv//swe
NATURAL SCIENCES Physical Sciences Subatomic Physics hsv//eng

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Jonsson, Robert H.Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Max Planck Institute of Quantum Optics, Germany (author)
Casals, MarcCentro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, CEP 22290-180, Brazil; Institut für Theoretische Physik, Universität Leipzig, Brüderstraße 16, 04103 Leipzig, Germany, Brüderstraße 16; School of Mathematics and Statistics, University College Dublin, Belfield, Dublin 4, Ireland, Belfield, 4; Laboratoire Univers et Théories, Observatoire de Paris, CNRS, Université PSL, Université de Paris, 92190 Meudon, France (author)
Kempf, AchimInstitute for Quantum Computing, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada; Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, N2L 3G1 Canada; Perimeter Institute for Theoretical Physics, 31 Caroline St N, Waterloo, Ontario, N2L 2Y5, Canada, 31 Caroline St N; Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada (author)
Martín-Martínez, EduardoInstitute for Quantum Computing, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada; Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, N2L 3G1 Canada; Perimeter Institute for Theoretical Physics, 31 Caroline St N, Waterloo, Ontario, N2L 2Y5, Canada, 31 Caroline St N; Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada (author)
Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, CEP 22290-180, BrazilNordiska institutet för teoretisk fysik (Nordita) (creator_code:org_t)

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In:Physical Review D: American Physical Society (APS)108:22470-00102470-0029

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Subatomic Physic ...

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