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An up to 15 T pulsed magnetic field generator in a volume of a few cubic centimeters has been created for experiments with magnetized laser plasma. The magnetic field is created by a pair of coils placed in a sealed reservoir with liquid…

A scheme to generate highly collimated $\gamma$-ray pulse is proposed for the production of muon and electron pairs in $\gamma-\gamma$ collider. The $\gamma$-ray pulse, with high conversion efficiency, can be produced as the result of…

等离子体物理 · 物理学 2017-12-27 J. Q. Yu , R. H. Hu , Z. Gong , A. Ting , Z. Najmudin , D. Wu , H. Y. Lu , W. J. Ma , X. Q. Yan

We study the generation of magnetic field in the primordial plasma of the standard model (SM) particles at temperature $T>80$~TeV much higher than the electroweak scale. It is assumed that there is an excess number of right-handed electrons…

宇宙学与河外天体物理 · 物理学 2016-09-07 Jitesh R. Bhatt , Arun Kumar Pandey

The Sauter-Schwinger effect predicts the creation of electron-positron pairs out of the quantum vacuum via tunneling induced by a strong electric field. Unfortunately, as the required field strength is extremely large, this fundamental…

介观与纳米尺度物理 · 物理学 2018-01-18 Malte F. Linder , Axel Lorke , Ralf Schützhold

This thesis investigates cosmological particle production within Quantum Field Theory in Curved Spacetimes, both as a dark matter mechanism and through analog simulations using Bose-Einstein condensates. While a full theory of Quantum…

广义相对论与量子宇宙学 · 物理学 2026-02-12 Álvaro Parra-López

Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via Biermann battery effect, and the inversely directed magnetic field lines interact with each other.…

In this work we study the influence of external electric field and temperature on the chiral phase transition of Quantum Chromodynamics. We use the two-flavor Linear Sigma Model coupled with quarks (LSMq) in a thermal and electrized medium…

高能物理 - 唯象学 · 物理学 2023-08-02 William R. Tavares , Sidney S. Avancini , Ricardo L. S. Farias

The possibility to observe vacuum electron-positron pair creation due to a powerful optical laser pulse is discussed. We employ a quantum kinetic formulation of the problem with a source term describing the vacuum pair production in a…

等离子体物理 · 物理学 2007-05-23 D. B. Blaschke , A. V. Prozorkevich , S. A. Smolyansky , A. V. Tarakanov

A QED-based mechanism, breaking translational invariance of the vacuum at sufficiently small distance scales, is suggested as an explanation for the vacuum energy pressure that accelerates the universe. Very-small-scale virtual vacuum…

高能物理 - 理论 · 物理学 2007-05-23 H. M. Fried

Using the generally covariant magnetofluid formalism for a hot plasma, a new curvature (of space time) driven mechanism for generating seed vorticity/magnetic field is presented. The "battery" owes its origin to the interaction between…

高能天体物理现象 · 物理学 2012-10-09 Swadesh M. Mahajan , Felipe A. Asenjo

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

We study magnetogenesis in axionlike inflation driven by a pseudoscalar field $\phi$ coupled axially to the electromagnetic (EM) field $(\beta/M_{p})\phi F_{\mu\nu}\tilde{F}^{\mu\nu}$ with dimensionless coupling constant $\beta$. A set of…

宇宙学与河外天体物理 · 物理学 2019-09-20 O. O. Sobol , E. V. Gorbar , S. I. Vilchinskii

Magnetars in quiescent states continue to emit hard X-rays with a power far exceeding the loss of rotational energy. It has recently been noted that this hard X-ray continuum may bear a direct signature of quantum electrodynamic (QED)…

高能天体物理现象 · 物理学 2025-01-24 Jonathan Zhang , Christopher Thompson

Astrophysical compact objects, such as magnetars, neutron star mergers, etc, have strong electromagnetic fields beyond the Schwinger field ($B_c = 4.4 \times 10^{13}\, {\rm G}$). In strong electric fields, electron-positron pairs are…

高能天体物理现象 · 物理学 2025-03-13 Sang Pyo Kim

Transient interaction of magnetic dipole with plasma flow carrying southward magnetic field is studied in laboratory experiment. The flow with transverse frozen-in field is generated by means of laser-produced plasma cross-field expansion…

等离子体物理 · 物理学 2017-11-09 I F Shaikhislamov , Yu P Zakharov , V G Posukh , A V Melekhov , V M Antonov , E L Boyarintsev , A G Ponomarenko

We study the particle creation process in the Schwinger model coupled with an external classical source. One can approach the problem by taking advantage that the full quantized model is solvable and equivalent to a (massive) gauge field…

高能物理 - 理论 · 物理学 2022-11-29 José Navarro-Salas , Silvia Pla

In the presence of a strong electric field, the vacuum is unstable to the production of pairs of charged particles -- the Schwinger effect. The created pairs extract energy from the electric field, resulting in nontrivial backreaction. In…

高能物理 - 理论 · 物理学 2026-04-10 Samuel E. Gralla , Morifumi Mizuno

Recent observations of gravitational waves from binary mergers of black holes or neutron stars and the rapid development of ultra-intense lasers lead strong field physics to a frontier of new physics in the 21st century. Strong gravity…

广义相对论与量子宇宙学 · 物理学 2019-06-03 Sang Pyo Kim

Using a quantum kinetic equation coupled to Maxwell's equation we study the possibility that focused beams at proposed X-ray free electron laser facilities can generate electric field strengths large enough to cause spontaneous…

核理论 · 物理学 2008-11-26 R. Alkofer , M. B. Hecht , C. D. Roberts , S. M. Schmidt , D. V. Vinnik

Magnetic field generation in ultra-intense laser-solid interactions is studied over a range of laser intensities relevant to next-generation laser facilities ($a_0 = 50-500$) using 2D particle-in-cell simulations. It is found that fields on…