Electromagnetic radiation reaction and energy extraction from black holes: The tail term cannot be ignored
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Electromagnetic radiation reaction and energy extraction from black holes : The tail term cannot be ignored. / Santos, João S.; Cardoso, Vitor; Natário, José.
I: Physical Review D, Bind 107, Nr. 6, 064046, 2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Electromagnetic radiation reaction and energy extraction from black holes
T2 - The tail term cannot be ignored
AU - Santos, João S.
AU - Cardoso, Vitor
AU - Natário, José
N1 - Publisher Copyright: © 2023 American Physical Society.
PY - 2023
Y1 - 2023
N2 - We study electromagnetic radiation reaction in curved space and the dynamics of radiating charged particles. The equation of motion for such particles is the DeWitt-Brehme equation, and it contains a particularly complicated, nonlocal, tail term. It has been claimed that the tail term can be neglected in certain magnetized black hole spacetimes, and that radiation reaction may then lead to energy extraction ("orbital widening") in the absence of an ergoregion. We show that such claims are incorrect, at least in the Newtonian limit: the tail term can never be neglected consistently in the relevant scenarios, and when it is included the reported energy extraction no longer occurs. Thus, previous results are called into question by our work.
AB - We study electromagnetic radiation reaction in curved space and the dynamics of radiating charged particles. The equation of motion for such particles is the DeWitt-Brehme equation, and it contains a particularly complicated, nonlocal, tail term. It has been claimed that the tail term can be neglected in certain magnetized black hole spacetimes, and that radiation reaction may then lead to energy extraction ("orbital widening") in the absence of an ergoregion. We show that such claims are incorrect, at least in the Newtonian limit: the tail term can never be neglected consistently in the relevant scenarios, and when it is included the reported energy extraction no longer occurs. Thus, previous results are called into question by our work.
U2 - 10.1103/PhysRevD.107.064046
DO - 10.1103/PhysRevD.107.064046
M3 - Journal article
AN - SCOPUS:85151256727
VL - 107
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 6
M1 - 064046
ER -
ID: 372820969