TY - JOUR

T1 - Kinetic theory of vacuum pair production in uniform electric fields revisited

AU - Aleksandrov, I.A.

AU - Kudlis, A.

AU - Klochai, A.I.

N1 - Export Date: 21 October 2024 Адрес для корреспонденции: Aleksandrov, I.A.; Department of Physics, Universitetskaya Naberezhnaya 7/9, Russian Federation; эл. почта: i.aleksandrov@spbu.ru Адрес для корреспонденции: Kudlis, A.; Science Institute, Iceland; эл. почта: andrewkudlis@gmail.com

PY - 2024/10/3

Y1 - 2024/10/3

N2 - We investigate the phenomenon of electron-positron pair production from vacuum in the presence of a uniform time-dependent electric field of arbitrary polarization. Taking into account the interaction with the external classical background in a nonperturbative manner, we quantize the electron-positron field and derive a system of ten quantum kinetic equations (QKEs) showing that the previously-used QKEs are incorrect once the external field rotates in space. We employ then the Wigner-function formalism of the field quantization and establish a direct connection between the Dirac-Heisenberg-Wigner (DHW) approach to investigating the vacuum pair-production process and the QKEs. We provide a self-contained description of the two theoretical frameworks rigorously proving their equivalence and present an exact one-to-one correspondence between the kinetic functions involved within the two techniques. Special focus is placed on the analysis of the spin effects in the final particle distributions. © 2024 authors. Published by the American Physical Society.

AB - We investigate the phenomenon of electron-positron pair production from vacuum in the presence of a uniform time-dependent electric field of arbitrary polarization. Taking into account the interaction with the external classical background in a nonperturbative manner, we quantize the electron-positron field and derive a system of ten quantum kinetic equations (QKEs) showing that the previously-used QKEs are incorrect once the external field rotates in space. We employ then the Wigner-function formalism of the field quantization and establish a direct connection between the Dirac-Heisenberg-Wigner (DHW) approach to investigating the vacuum pair-production process and the QKEs. We provide a self-contained description of the two theoretical frameworks rigorously proving their equivalence and present an exact one-to-one correspondence between the kinetic functions involved within the two techniques. Special focus is placed on the analysis of the spin effects in the final particle distributions. © 2024 authors. Published by the American Physical Society.

KW - Electric fields

KW - Wigglers

KW - Wigner-Ville distribution

KW - Arbitrary polarization

KW - Electron-positron pair productions

KW - External fields

KW - Nonperturbative

KW - Pair production

KW - Quantisation

KW - Quantum kinetic equations

KW - Time-dependent electric field

KW - Uniform electric fields

KW - Wigner function formalism

KW - Positrons

UR - http://arxiv.org/abs/2403.17204

UR - https://www.mendeley.com/catalogue/d368d064-4e81-3737-b6c1-cf2b2fb36249/

U2 - 10.1103/physrevresearch.6.043009

DO - 10.1103/physrevresearch.6.043009

M3 - статья

VL - 6

JO - Physical Review Research

JF - Physical Review Research

SN - 2643-1564

IS - 4

ER -