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Backreaction on background fields: A coherent state approach

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Backreaction on background fields : A coherent state approach. / Ilderton, Anton; Seipt, Daniel.

In: Physical Review D, Vol. 97, No. 1, 016007, 17.01.2018.

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Ilderton, Anton ; Seipt, Daniel. / Backreaction on background fields : A coherent state approach. In: Physical Review D. 2018 ; Vol. 97, No. 1.

Bibtex

@article{bf2fd906ee0540e08ced60804e5afb9c,
title = "Backreaction on background fields: A coherent state approach",
abstract = "There are many situations in which a strong electromagnetic field may be approximated as a fixed background. Going beyond this approximation, i.e. accounting for the back-reaction of quantum process on the field, is however challenging. Here we develop an approach to this problem which is a straightforward extension of background field methods. The approach follows from the observation that scattering in an on-shell background is equivalent to scattering between coherent states; we show that by deforming these states one can model back-reaction. Focussing on intense laser-matter interactions, we provide examples which model beam depletion and, furthermore, introduce an extremisation principle with which to determine the level of depletion in a given scattering process.",
author = "Anton Ilderton and Daniel Seipt",
year = "2018",
month = jan,
day = "17",
doi = "10.1103/PhysRevD.97.016007",
language = "English",
volume = "97",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Backreaction on background fields

T2 - A coherent state approach

AU - Ilderton, Anton

AU - Seipt, Daniel

PY - 2018/1/17

Y1 - 2018/1/17

N2 - There are many situations in which a strong electromagnetic field may be approximated as a fixed background. Going beyond this approximation, i.e. accounting for the back-reaction of quantum process on the field, is however challenging. Here we develop an approach to this problem which is a straightforward extension of background field methods. The approach follows from the observation that scattering in an on-shell background is equivalent to scattering between coherent states; we show that by deforming these states one can model back-reaction. Focussing on intense laser-matter interactions, we provide examples which model beam depletion and, furthermore, introduce an extremisation principle with which to determine the level of depletion in a given scattering process.

AB - There are many situations in which a strong electromagnetic field may be approximated as a fixed background. Going beyond this approximation, i.e. accounting for the back-reaction of quantum process on the field, is however challenging. Here we develop an approach to this problem which is a straightforward extension of background field methods. The approach follows from the observation that scattering in an on-shell background is equivalent to scattering between coherent states; we show that by deforming these states one can model back-reaction. Focussing on intense laser-matter interactions, we provide examples which model beam depletion and, furthermore, introduce an extremisation principle with which to determine the level of depletion in a given scattering process.

U2 - 10.1103/PhysRevD.97.016007

DO - 10.1103/PhysRevD.97.016007

M3 - Journal article

VL - 97

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 1

M1 - 016007

ER -