منابع مشابه
Spatially Assisted Schwinger Mechanism and Magnetic Catalysis.
Using the worldline formalism we compute an effective action for fermions under a temporally modulated electric field and a spatially modulated magnetic field. It is known that the former leads to an enhanced Schwinger mechanism, while we find that the latter can also result in enhanced particle production and even cause a reorganization of the vacuum to acquire a larger dynamical mass in equil...
متن کاملMultiparticle correlations in the Schwinger mechanism
We discuss the Schwinger mechanism in scalar QED and derive the multiplicity distribution of particles created under an external electric field using the LSZ reduction formula. Assuming that the electric field is spatially homogeneous, we find that the particles of different momenta are produced independently, and that the multiplicity distribution in one mode follows a Bose-Einstein distributi...
متن کاملSchwinger mechanism in linear covariant gauges
A. C. Aguilar, D. Binosi, and J. Papavassiliou University of Campinas UNICAMP, Institute of Physics “Gleb Wataghin”, 13083-859 Campinas, SP, Brazil European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Villa Tambosi, Strada delle Tabarelle 286, I-38123 Villazzano (TN) Italy Department of Theoretical Physics and IFIC, University of Vale...
متن کاملAdjoint QCD2 and the Non-Abelian Schwinger Mechanism
Massless Majorana fermions in the adjoint representation of SU(Nc) are expected to screen gauge interactions in 1+1 dimensions, analogous to a similar Higgs phenomena known for 1+1dimensional U(1) gauge theory with massless fundamental fermions (Schwinger model). Using the light-cone formalism and large-Nc limit, a non-abelian analogue of the Schwinger boson is shown to be responsible for the s...
متن کاملPseudoscalar production in electromagnetic fields by a Schwinger-like mechanism
In this talk I report on some recent calculations on the production of pseudoscalars from intense electromagnetic fields. Talk at QED2000, Trieste (October 2000) 1 Decay of classical background fields into pseudoscalars We would like to calculate the effective action for the background electromagnetic E and B fields, eeff [E,B] = ∫ Dφ e (1) when integrating a pseudoscalar φ of mass m, that has ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2008
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.101.130404