Effective field theory of force-free electrodynamics
Effective field theory of force-free electrodynamics
复制标题
无力电动力学的有效场论
DOI:
10.1103/physrevd.99.105004
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发表时间:
2019
影响因子:
5
通讯作者:
Iqbal, Nabil
中科院分区:
文献类型:
--
作者:
Gralla, Samuel E.;Iqbal, Nabil
Force-free electrodynamics (FFE) is a closed set of equations for the electromagnetic field of a magnetically dominated plasma. There are strong arguments for the existence of force-free plasmas near pulsars and active black holes, but FFE alone cannot account for the observational signatures, such as coherent radio emission and relativistic jets and winds. We reformulate FFE as the effective field theory of a cold string fluid and initiate a systematic study of corrections in a derivative expansion. At leading order the effective theory is equivalent to (generalized) FFE, with the strings comprised by magnetic field line world sheets. Higher-order corrections generically give rise to nonzero accelerating electric fields (). We discuss potential observable consequences and comment on an intriguing numerical coincidence.
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影响因子:
5.4
作者:
J. Bhattacharya;Sayantani Bhattacharyya;Mukund Rangamani
通讯作者:
J. Bhattacharya;Sayantani Bhattacharyya;Mukund Rangamani
影响因子:
2.5
作者:
M. Lyutikov;L. Sironi;S. Komissarov;O. Porth
通讯作者:
O. Porth
影响因子:
1.3
作者:
Laura Garland Carr
通讯作者:
Laura Garland Carr
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
Paolo Glorioso;D. Son
通讯作者:
D. Son
DOI:
--
发表时间:
2013-07
期刊:
arXiv: General Relativity and Quantum Cosmology
影响因子:
--
作者:
H. Pfeiffer;A. MacFadyen
通讯作者:
H. Pfeiffer;A. MacFadyen