Spin-dependent dynamically assisted Schwinger mechanism
نویسندگان
چکیده
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 کاملSpin-dependent Trap-assisted Tunneling in Ferromagnet-Oxide-Semiconductor Structures
Silicon is an ideal material for spintronic applications due to its weak spin-orbit interaction and long spin lifetime [1,2]. Spin injection from a ferromagnetic electrode into n-type silicon was claimed at room [3] and elevated [4] temperatures. However, the amplitude of the spin-accumulation signal extracted from a three-terminal injection method [2,3] is orders of magnitude higher than predi...
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 کاملSchwinger Mechanism for Quark-Antiquark Production in the Presence of Arbitrary Time Dependent Chromo-Electric Field
We study the Schwinger mechanism in QCD in the presence of an arbitrary timedependent chromo-electric background field Ea(t) with arbitrary color index a=1,2,...8 in SU(3). We obtain an exact result for the non-perturbative quark (antiquark) production from an arbitrary Ea(t) by directly evaluating the path integral. We find that the exact result is independent of all the time derivatives d nEa...
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 D
سال: 2019
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.100.016013