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pro vyhledávání: '"Esposti, Gianluca Degli"'
We consider nonlinear trident, $e^{\scriptscriptstyle -}\to e^{\scriptscriptstyle -} e^{\scriptscriptstyle -} e^{\scriptscriptstyle +}$, in various electric background fields. This process has so far been studied for plane-wave backgrounds, using Vol
Externí odkaz:
http://arxiv.org/abs/2412.19758
We use a worldline-instanton formalism to study the momentum spectrum of Schwinger pair production in spacetime fields with multiple stationary points. We show that the interference structure changes fundamentally when going from purely time-dependen
Externí odkaz:
http://arxiv.org/abs/2412.19709
We show how to use a worldline-instanton formalism to calculate, to leading order in the weak-field expansion, the momentum spectrum of nonlinear Breit-Wheeler pair production in fields that depend on time and one spatial coordinate. We find a nontri
Externí odkaz:
http://arxiv.org/abs/2312.17186
We calculate the momentum spectrum of electron-positron pairs created via the Schwinger mechanism by a class of four-dimensional electromagnetic fields called e-dipole fields. To the best of our knowledge, this is the first time the momentum spectrum
Externí odkaz:
http://arxiv.org/abs/2308.01659
We show how to use the worldline-instanton formalism to calculate the momentum spectrum of the electron-positron pairs produced by an electric field that depends on both space and time. Using the LSZ reduction formula with a worldline representation
Externí odkaz:
http://arxiv.org/abs/2212.11578
Worldline instantons have previously been used to study the probability of Schwinger pair production (both the exponential and pre-exponential parts) and photon-stimulated pair production (the exponential part). Previous studies obtained the pair-pro
Externí odkaz:
http://arxiv.org/abs/2112.11433
We study the Dirac propagator dressed by an arbitrary number $N$ of photons by means of a worldline approach, which makes use of a supersymmetric ${\cal N} = 1$ spinning particle model on the line, coupled to an external Abelian vector field. We obta
Externí odkaz:
http://arxiv.org/abs/2008.03114
Akademický článek
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Publikováno v:
Nuclear Physics B 970(2021), 115498
Nuclear Physics B, Vol 970, Iss, Pp 115498-(2021)
Nuclear Physics B
Nuclear Physics B, Vol 970, Iss, Pp 115498-(2021)
Nuclear Physics B
We study the Dirac propagator dressed by an arbitrary number $N$ of photons by means of a worldline approach, which makes use of a supersymmetric ${\cal N} = 1$ spinning particle model on the line, coupled to an external Abelian vector field. We obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a8bd6fc78ebb74d136b2f1a96acc92c
https://hdl.handle.net/11380/1252345
https://hdl.handle.net/11380/1252345