Communication through quantum fields near a black hole
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Communication through quantum fields near a black hole. / Jonsson, Robert H.; Aruquipa, David Q.; Casals, Marc; Kempf, Achim; Martín-Martínez, Eduardo.
I: Physical Review D, Bind 101, Nr. 12, 125005, 2020.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Communication through quantum fields near a black hole
AU - Jonsson, Robert H.
AU - Aruquipa, David Q.
AU - Casals, Marc
AU - Kempf, Achim
AU - Martín-Martínez, Eduardo
PY - 2020
Y1 - 2020
N2 - We study the quantum channel between two localized first-quantized systems that communicate in 3+1 dimensional Schwarzschild spacetime via a quantum field. We analyze the information carrying capacity of direct and black hole-orbiting null geodesics as well as of the timelike contributions that arise because the strong Huygens principle does not hold on the Schwarzschild background. We find, in particular, that the nondirect-null and timelike contributions, which do not possess an analog on Minkowski spacetime, can dominate over the direct null contributions. We cover the cases of both geodesic and accelerated emitters. Technically, we apply tools previously designed for the study of wave propagation in curved spacetimes to a relativistic quantum information communication setup, first for generic spacetimes, and then for the case of Schwarzschild spacetime in particular.
AB - We study the quantum channel between two localized first-quantized systems that communicate in 3+1 dimensional Schwarzschild spacetime via a quantum field. We analyze the information carrying capacity of direct and black hole-orbiting null geodesics as well as of the timelike contributions that arise because the strong Huygens principle does not hold on the Schwarzschild background. We find, in particular, that the nondirect-null and timelike contributions, which do not possess an analog on Minkowski spacetime, can dominate over the direct null contributions. We cover the cases of both geodesic and accelerated emitters. Technically, we apply tools previously designed for the study of wave propagation in curved spacetimes to a relativistic quantum information communication setup, first for generic spacetimes, and then for the case of Schwarzschild spacetime in particular.
UR - http://www.scopus.com/inward/record.url?scp=85087041708&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.101.125005
DO - 10.1103/PhysRevD.101.125005
M3 - Journal article
AN - SCOPUS:85087041708
VL - 101
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 12
M1 - 125005
ER -
ID: 249167128