Magnetic response from constant backgrounds to Coulomb sources

Autor(es)

Adorno, T. C. ^{[1, 2, 3]} ; Gitman, D. M. ^{[4, 1, 5]} ; Shabad, A. E. ^{[1, 5]}

Afiliação do(s) autor(es)

^[1] Tomsk State Univ, Dept Phys, Lenin Prospekt 36, Tomsk 634050 - Russia

^[2] Hebei Univ, Coll Phys Sci & Technol, Dept Phys, Wusidong Rd 180, Baoding 071002 - Peoples R China

^[3] Hebei Univ, Key Lab High Precis Computat & Applicat Quantum F, Baoding - Peoples R China

^[4] Univ Sao Paulo, Inst Fis, Caixa Postal 66318, BR-05508090 Sao Paulo, SP - Brazil

^[5] PN Lebedev Phys Inst, 53 Leninskiy Prospekt, Moscow 119991 - Russia

• Tipo de documento: Artigo Científico
• Fonte: EUROPEAN PHYSICAL JOURNAL C; v. 80, n. 4 APR 7 2020.
• Citações Web of Science: 0

Resumo

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 embedded static electric charge. When the electric charge is point-like and external fields are parallel, the response found may be interpreted as a field of two point-like magnetic charges of opposite polarities in one point. Coefficients characterizing the magnetic response and induced current are specialized to quantum electrodynamics (QED), where the nonlinearity is taken as that determined by the local Heisenberg-Euler effective action. It is demonstrated how the same response is reproduced in the (nonisotropic) region remote from the charge by considering the polarization operator of QED. (AU)

• Processo FAPESP: 16/03319-6 - Métodos não perturbativos em teoria quântica e em TQC e aplicações deles aos problemas de física atuais
• Beneficiário: Dmitri Maximovitch Guitman
• Modalidade de apoio: Auxílio à Pesquisa - Temático