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Resonant modes in a lossy periodic structure sandwiched between two lossless homogeneous media form bands that depend on the Bloch wavevector continuously and have a complex frequency due to radiation and absorption losses. A complex bound…

光学 · 物理学 2022-02-16 Ling Tan , Lijun Yuan , Ya Yan Lu

We study the dynamical Schwinger effect in the vacuum excitation of the electron-positron plasma under action of a "laser pulse" of the simplest configuration: a linearly polarized, time-dependent and spatially homogeneous electric field.…

等离子体物理 · 物理学 2015-09-04 D. Blaschke , L. Juchnowski , A. Panferov , S. Smolyansky

We calculate the rate for pair production of light pseudoscalars by strong inhomogeneous and static electric (magnetic) fields. We show that, in the case of axions, the stability of atoms over cosmic lifetimes is jeopardised unless the…

高能物理 - 唯象学 · 物理学 2014-11-17 J. A. Grifols , Eduard Masso , Subhendra Mohanty , K. V. Shajesh

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…

高能物理 - 理论 · 物理学 2017-03-07 Patrick Copinger , Kenji Fukushima

Electron-positron pair production from vacuum in external electric fields with space and time dependencies is studied numerically using real time Dirac-Heisenberg-Wigner formalism. The influence of spatial focusing scale of the electric…

高能物理 - 唯象学 · 物理学 2019-07-17 Mamutjan Ababekri , Bai-Song Xie , Jun Zhang

The low energy effective field model for the multilayer graphene (at ABC stacking) in external Electric field is considered. The Schwinger pair creation rate and the vacuum persistence probability are calculated using the semi - classical…

高能物理 - 唯象学 · 物理学 2014-12-23 M. A. Zubkov

Counter-propagating and suitably polarized light (laser) beams can provide conditions for pair production. Here, we consider in more detail the following two situations: (i) In the homogeneity regions of anti-nodes of linearly polarized…

高能物理 - 唯象学 · 物理学 2016-06-20 A. Otto , T. Nousch , D. Seipt B. Kämpfer , D. Blaschke , A. D. Panferov , S. A. Smolyansky , A. I. Titov

Electron-positron pairs can be produced via the Schwinger mechanism in the presence of strong electric fields. In particular, the fields involved in $\alpha$ decay and nuclear fission are strong enough to produce them. The energy of the…

核理论 · 物理学 2023-04-12 Thomas Settlemyre , Hua Zheng , Aldo Bonasera

The angular momentum of fermion pairs generated by the Schwinger effect is studied in homogeneous (chromo)electromagnetic fields, mimicking the early stages of a heavy-ion collision. It is demonstrated that the angular momentum density of…

高能物理 - 唯象学 · 物理学 2023-02-07 Patrick Copinger , Yoshimasa Hidaka

Sauter-Schwinger pair creation in electromagnetic fields is a fundamental prediction of QED and one of the motivations for the present efforts in constructing super-strong lasers. I will give a historical review of the subject, and then…

高能物理 - 唯象学 · 物理学 2024-06-21 Christian Schubert

We study particle - antiparticle pair production under action of a strong time dependent space homogeneous electric field at the presence of a collinear constant magnetic field. We derive the kinetic equation for a such field configuration…

高能物理 - 唯象学 · 物理学 2017-08-23 A. V. Tarakanov , A. V. Reichel , S. A. Smolyansky , S. M. Schmidt , D. V. Vinnik

Schwinger pair production in spatially and temporally inhomogeneous electric and magnetic fields is studied. The focus is on the particle phase-space distribution within a high-intensity few-cycle pulse. Accurate numerical solutions of a…

量子物理 · 物理学 2018-06-26 Christian Kohlfürst

We first demonstrate theoretically that the computational quantum field theory is equivalent to the quantum kinetic theory for pair creation in a spatially homogeneous and time-dependent electric field, then verify numerically their…

高能物理 - 唯象学 · 物理学 2021-06-30 Z. L. Li , C. Gong , Y. J. Li

The process of electron positron pair annihilation, driven by strong fields (Inverse Schwinger mechanism) and high-frequency waves, is studied using the Dirac Heisenberg Wigner formalism. In an electron positron plasma, the presence of a…

等离子体物理 · 物理学 2025-05-30 Haidar Al-Naseri

A semiclassical analysis is made of the origin of an undulating pattern in the smoothed level density for a reflection-asymmetric superdeformed oscillator potential. It is suggested that, when the octupole-type deformation increases, an…

核理论 · 物理学 2023-02-06 Ken-ichiro Arita

We provide a pedagogical review of the Schwinger effect, i.e., the non-perturbative production of particle and anti-particle pairs from the vacuum by strong fields, as well as related strong-field phenomena. Beginning with an overview of…

高能物理 - 唯象学 · 物理学 2026-03-10 Hidetoshi Taya

We study particle creation in a single pulse of an electric field in scalar quantum electrodynamics. We first identify parameter regions of the theory where the dynamical pair creation and Schwinger mechanism respectively dominate each…

高能物理 - 理论 · 物理学 2015-12-29 Takashi Arai

We study electron-positron pair production by the combination of a strong, constant electric field and a thermal background. We show that this process is similar to dynamically assisted Schwinger pair production, where the strong field is…

高能物理 - 唯象学 · 物理学 2019-05-16 Greger Torgrimsson

By using Dirac-Heisenberg-Wigner formalism we study electron-positron pair production for linear, elliptic, nearly circular and circular polarizations of electric fields with symmetrical frequency chirp, and we obtain Momentum spectra and…

高能物理 - 唯象学 · 物理学 2021-08-11 Kun Wang , Xuehua Hu , Sayipjamal Dulat , B. S. Xie

Building upon the Covariant Derivative Expansion, we develop a method to compute effective actions that is able to capture non-perturbative effects induced by strong background fields. We demonstrate the method in scalar QED, by deriving…

高能物理 - 理论 · 物理学 2025-12-10 Sebastián Franchino-Viñas , Jérémie Quevillon , Diego Saviot