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An analytical model for oscillating pair creation above the pulsar polar cap is presented in which the parallel electric field is treated as a large amplitude, superluminal, electrostatic wave. An exact formalism for such wave is derived in…

Astrophysics · Physics 2009-11-13 Q. Luo , D. B. Melrose

We investigate the generation rate of the quantum entanglement in a system composed of multiple massive particles with large spin, where the mass of a single particle can be split into multiple trajectories by a generalized Stern-Gerlach…

General Relativity and Quantum Cosmology · Physics 2025-11-13 Kai Li , Yi Ling , Zhangping Yu

We demonstrate the generation of Coulomb-correlated pair, triple and quadruple states of free electrons by femtosecond photoemission from a nanoscale field emitter inside a transmission electron microscope. Event-based electron spectroscopy…

Mesoscale and Nanoscale Physics · Physics 2023-11-28 Rudolf Haindl , Armin Feist , Till Domröse , Marcel Möller , John H. Gaida , Sergey V. Yalunin , Claus Ropers

The accumulation of electrons and positrons in the vacuum magnetosphere of a neutron star with a surface magnetic field of B~10^12 G is considered. It is shown that particles created in the magnetosphere or falling into the magnetosphere…

High Energy Astrophysical Phenomena · Physics 2010-12-17 Ya. N. Istomin , D. N. Sob'yanin

Formation of atomic pairs by the dissociation of a molecular condensate or by inelastic collisions in an atomic condensate due to a time-dependent curve crossing process is studied beyond the mean-field approximation. The number of atoms…

Condensed Matter · Physics 2009-11-07 V. A. Yurovsky , A. Ben-Reuven , P. S. Julienne

The exact solutions of the wave equation for arbitrary spin particles with electric dipole and magnetic moments in the constant and uniform electromagnetic field were found. The differential probability of pair production of particles by an…

High Energy Physics - Theory · Physics 2009-11-07 S. I. Kruglov

Glasma in high energy heavy ion collisions is longitudinal classical color electric and magnetic fields. The color electric field has been shown to produces quark and anti-quark pairs by the Schwinger mechanism and to oscillate with time in…

High Energy Physics - Phenomenology · Physics 2015-05-30 Aiichi Iwazaki

The effects of the discharge voltage on the formation and nature of electric field transients in a symmetric, collisionless, very high frequency, capacitively coupled plasma are studied using a self-consistent particle-in-cell (PIC)…

Plasma Physics · Physics 2019-07-24 Sarveshwar Sharma , N. Sirse , A. Sen , J. S. Wu , M. M. Turner

We investigate the spin-dependent dynamical response of a quantum ring with a spin-orbit interaction upon the application of linearly polarized, picosecond, asymmetric electromagnetic pulses. The oscillations of the generated dipole moment…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Zhen-Gang Zhu , Jamal Berakdar

We develop methods for computing the dynamics of fermion pair production by strong color electric fields using the semi-classical Boltzmann-Vlasov equation. We present numerical results for a model with SU(2) symmetry in (1+1) dimension.

High Energy Physics - Phenomenology · Physics 2010-04-14 John F. Dawson , Bogdan Mihaila , Fred Cooper

The process of electron-positron pair production is investigated within the phase-space Wigner formalism. The similarities between atomic ionization and pair production for homogeneous, but time-dependent linearly polarized electric fields…

High Energy Physics - Phenomenology · Physics 2015-12-21 Christian Kohlfürst

Intense attosecond magnetic field pulses are predicted to be produced by intense few cycle circularly polarized UV pulses. Numerical solutions of the time dependent Schr\"{o}dinger equation for H$_2^+$ are used to study the dynamical…

Optics · Physics 2013-07-24 Kai-Jun Yuan , Andre D. Bandrauk

Electromagnetic waves due to electron-positron clouds (bunches), created by cascading processes in pulsar magnetospheres, have been proposed to explain the pulsar radio emission. In order to verify this hypothesis, we utilized for the first…

High Energy Astrophysical Phenomena · Physics 2021-12-22 Jan Benáček , Patricio A. Muñoz , Jörg Büchner

We study on the self-consistency of the pulsar polar cap model, i.e., the problem of whether the field-aligned electric field is screened by electron-positron pairs that are injected beyond the pair production front. We solve the…

Astrophysics · Physics 2009-11-07 S. Shibata , J. Miyazaki , F. Takahara

This study is about the application of the non-commutativity on the DKP equation up to first order in $\theta $ for the process of pair-creation of bosons from vacuum in (1+1) curved space-time. The density of particles created in the…

High Energy Physics - Theory · Physics 2018-04-25 Lamine Khodja , Slimane Zaim

We present a short review of recent progress in studying QED effects of interaction of ultra-relativistic laser pulses with vacuum and $e^-e^+$ plasma. The development of laser technologies promises very rapid growth of laser intensities in…

Plasma Physics · Physics 2015-06-18 N. B. Narozhny , A. M. Fedotov

The generation of parallel electric fields by the propagation of ion cyclotron waves in the plasma with a transverse density inhomogeneity was studied. It was proven that the minimal model required to reproduce the previous kinetic…

Astrophysics · Physics 2008-06-10 David Tsiklauri

The mechanism of pair creation in electrosphere of compact astrophysical objects such as quark stars or neutron stars is revisited, paying attention to evaporation of electrons and acceleration of electrons and positrons, previously not…

High Energy Astrophysical Phenomena · Physics 2025-02-19 Mikalai Prakapenia , Gregory Vereshchagin

We investigate the effect of a distorted neutron star dipole magnetic field on pulsar pair cascade multiplicity and pair death lines. Using a simple model for a distorted dipole field that produces an offset polar cap, we derive the…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Alice K. Harding , Alex G. Muslimov

The probability-generating function of the number of electron-positron pairs produced in a uniform electric field is constructed. The mean and variance of the numbers of pairs are calculated, and analytical expressions for the probability…

High Energy Physics - Phenomenology · Physics 2015-06-05 M. I. Krivoruchenko
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