Zobrazeno 1 - 10
of 365
pro vyhledávání: '"M. Gitman"'
Autor:
Alexander I. Breev, Dmitry M. Gitman
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 2, Pp 1-10 (2024)
Abstract In spite of the fact that photons do not interact with an external magnetic field unless nonlinearity of QED is taken into account, the latter field may indirectly affect photons in the presence of a charged environment. This opens up an int
Externí odkaz:
https://doaj.org/article/f1e7f1ceec1a41e999fbdcdd10dfdcbf
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 2, Pp 1-16 (2023)
Abstract In the framework of strong-field QED with x-steps, we study vacuum mean values of the current density and energy–momentum tensor of the quantized spinor field placed in the so-called L-constant electric background. The latter background ca
Externí odkaz:
https://doaj.org/article/6b0d8918264148b69d7b93ba17496efd
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-31 (2021)
Abstract We study neutral fermions pair creation with anomalous magnetic moment from the vacuum by time-independent magnetic-field inhomogeneity as an external background. We show that the problem is technically reduced to the problem of charged-part
Externí odkaz:
https://doaj.org/article/7f6cce19ad154e9d8b5d09b5b1df8cf6
Autor:
S. P. Gavrilov, D. M. Gitman
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 9, Pp 1-15 (2020)
Abstract The present article is an important addition to the nonperturbative formulation of QED with x-steps presented by Gavrilov and Gitman (Phys. Rev. D. 93:045002, 2016). Here we propose a new renormalization and volume regularization procedures
Externí odkaz:
https://doaj.org/article/ff76c298f95445e8b26cdad1478077c9
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 4, Pp 1-11 (2020)
Abstract Within general nonlinear electrodynamics given by a local action, very special magnetic field configuration carrying no magnetic charge is found as a linear response of the vacuum, filled with constant electric and magnetic fields, to an emb
Externí odkaz:
https://doaj.org/article/2db1808c03494435843c20c546a5d0f1
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 2, Pp 1-27 (2020)
Abstract Basic quantum processes (such as particle creation, reflection, and transmission on the corresponding Klein steps) caused by inverse-square electric fields are calculated. These results represent a new example of exact nonperturbative calcul
Externí odkaz:
https://doaj.org/article/c364957476174f8090c87e35ffa353bb
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 12, Pp 1-17 (2018)
Abstract In the framework of QED with a strong background, we study particle creation (the Schwinger effect) by a time-dependent inverse square electric field. To this end corresponding exact in- and out-solutions of the Dirac and Klein–Gordon equa
Externí odkaz:
https://doaj.org/article/c8c6ed199f134c8482b5de35273a5183
Autor:
J. L. M. Assirati, D. M. Gitman
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 7, Pp 1-38 (2017)
Abstract We present covariant quantization rules for nonsingular finite-dimensional classical theories with flat and curved configuration spaces. In the beginning, we construct a family of covariant quantizations in flat spaces and Cartesian coordina
Externí odkaz:
https://doaj.org/article/ba990b6ba2be45e38e4dc0dcbc808222
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 5, Pp 1-7 (2017)
Abstract In the classical theory of synchrotron radiation, for the exact quantitative characterization of spectral properties, the concept of effective spectral width is introduced. In the first part of our work, published in EJPC 75 (2015), the effe
Externí odkaz:
https://doaj.org/article/ba9eb11fafff41bea9469debe69f90c9
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