Kinetics of Vacuum Pair Creation in Strong Electromagnetic Fields
نویسندگان
چکیده
We study vacuum particle antiparticle pair production under action of a strong time dependent space homogeneous electric field at the presence of a constant magnetic field. The kinetic equation for fermions and bosons was derived in the framework of the Schwinger mechanism of vacuum tunnelling. We show the enhancement of pair production for fermions (suppression for bosons) with the increasing of the magnetic field as in the case of the constant electromagnetic field. We have constructed closed set of equations, which can be applied to some actual problems with manifestation of strong electromagnetic fields, e.g., it is essential in the framework of the Fluxe Tube Model of QuarkGluon Plasma generation; for describing some cosmological objects and especially because of the planned experiments on creation of subcritical fields in the XFree Electron Laser pulses.
منابع مشابه
Multiplicity distribution of electron-positron pairs created by strong external fields.
We discuss the multiplicity distribution of electron-positron pairs created in the strong electromagnetic fields of ultrarelativistic heavy-ion transits. Based on nonperturbative expressions for the N-pair creation amplitudes, the Poisson distribution is derived by neglecting interference terms. The source of unitarity violation is identified in the vacuum-to-vacuum amplitude, and a perturbativ...
متن کاملPhoton Splitting and Pair Conversion in Strong Magnetic Fields
The magnetospheres of neutron stars provide a valuable testing ground for as-yet unverified theoretical predictions of quantum electrodynamics (QED) in strong electromagnetic fields. Exhibiting magnetic field strengths well in excess of a TeraGauss, such compact astrophysical environments permit the action of exotic mechanisms that are forbidden by symmetries in field-free regions. Foremost amo...
متن کاملTabletop creation of entangled multi-keV photon pairs and the Unruh effect.
Electrons moving in a strong periodic electromagnetic field (e.g., laser or undulator) may convert quantum vacuum fluctuations into pairs of entangled photons, which can be understood in terms of the Unruh effect. Apart from verifying this striking phenomenon, the considered effect may allow the construction of a tabletop source for entangled photons ("photon pair laser") and the associated qua...
متن کاملDesign and Fabrication of Helmholtz Coils to Study the Effects of Pulsed Electromagnetic Fields on the Healing Process in Periodontitis: Preliminary Animal Results
Background: Effects of electromagnetic fields on healing have been investigated for centuries. Substantial data indicates that exposure to electromagnetic field can lead to enhanced healing in both soft and hard tissues. Helmholtz coil is a device that generates pulsed electromagnetic fields. Objective: In this study, a pair of Helmholtz coils for enhancing thehealing process in periodontitis w...
متن کاملElectromagnetic Fields in the Qcd Vacuum
Quarks play an active role in shaping the QCD vacuum structure. Being dual carriers of both ‘color’ and ‘electric’ charges they also respond to externally applied electromagnetic fields. Thus, in principle, the vacuum of strong interactions influences higher order QED processes such as photon-photon scattering. We survey here the current status of the understanding of the vacuum structure of st...
متن کامل