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The low-energy light-by-light cross section as determined by the nonlinear Euler-Heisenberg QED Lagrangian is evaluated in the presence of constant magnetic fields in the center-of-mass system of the colliding photons. This cross section…

High Energy Physics - Phenomenology · Physics 2018-09-12 R. Baier , A. Rebhan , M. Wödlinger

Intense magnetic fields in the atmospheres of neutron stars render non-trivial angular dependence of intensity and polarization of soft X-ray emission originating from their surfaces. By tracking the complex electric field vector for each…

High Energy Astrophysical Phenomena · Physics 2026-03-17 Hoa Dinh Thi , Matthew G. Baring , Kun Hu , Alice K. Harding , Rachael E. Stewart , George A. Younes , Joseph A. Barchas

Nonlinear optical effects in vacuum have been investigated as a means to verify quantum electrodynamics in a region of low photon energy. By considering nonlinear electromagnetic waves in a three-dimensional cylindrical cavity, we report…

Optics · Physics 2023-07-19 Akitaka Watanabe , Kazunori Shibata

The importance of general relativity to the induced electric field exterior to pulsars has been investigated by assuming aligned vacuum and non-vacuum magnetosphere models. For this purpose the stationary and axisymmetric vector potential…

General Relativity and Quantum Cosmology · Physics 2016-08-31 S. SENGUPTA

We investigate the influence of relativistic nondipole effects on the photoelectron spectra of argon, particularly in the low kinetic energy region (0 eV - 5 eV). In our experiment, we use intense linearly polarised 800 nm laser pulse to…

Atomic Physics · Physics 2022-03-14 Nida Haram , Han Xu , Igor Ivanov , Dashavir Chetty , Igor Litvinyuk , R. T. Sang

Optical rectification of intense, circularly polarized light penetrating a material generates a static magnetic field aligned with the light's direction and proportional to its intensity. Recent experiments have unveiled a substantial,…

Optics · Physics 2023-10-16 R. Merlin

Magnetization of inertial confinement implosions is a promising means of improving their performance, owing to the potential reduction of energy losses within the target and mitigation of hydrodynamic instabilities. In particular,…

We investigate theoretically the relative time delay of photoelectrons originating from different atomic subshells of noble gases. This quantity was measured via attosecond streaking and studied theoretically by Schultze et al. [Science…

Atomic Physics · Physics 2015-06-22 Jonas Wätzel , Andrey Moskalenko , Yaroslav Pavlyukh , Jamal Berakdar

Nonlinear magnetotransport of a microwave-irradiated high mobility two-dimensional electron system under a finite direct current excitation is analyzed using a dc-controlled scheme with photon-assisted transition mechanism. The predicted…

Mesoscale and Nanoscale Physics · Physics 2008-08-27 X. L. Lei , S. Y. Liu

In 1933-1934 Born and Infeld constructed the first non-linear generalization of Maxwell's electrodynamics that turned out to be a remarkable theory in many respects. In 1935 Heisenberg and Euler computed a complete effective action…

High Energy Physics - Theory · Physics 2022-09-07 Dmitri P. Sorokin

One of the major and unfortunately unforeseen sources of background for the current generation of X-ray telescopes are few tens to hundreds of keV (soft) protons concentrated by the mirrors. One such telescope is the European Space Agency's…

Instrumentation and Methods for Astrophysics · Physics 2020-11-18 E. A. Kronberg , F. Gastaldello , S. Haaland , A. Smirnov , M. Berrendorf , S. Ghizzardi , K. D. Kuntz , N. Sivadas , R. C. Allen , A. Tiengo , R. Ilie , Y. Huang , L. Kistler

We study the effects of strong magnetic fields ($B> 10^{13}$~G) in the cross section for $\nu_e n\to p e$ scattering in the presence of a degenerate electron background. This can be relevant for the $\nu_e$ propagation in the proto-neutron…

High Energy Physics - Phenomenology · Physics 2009-10-30 Esteban Roulet

Adaptive optics will almost completely remove the effects of atmospheric turbulence at 10 microns on the Extremely Large Telescope (ELT) generation of telescopes. In this paper, we observationally confirm that the next most important…

Instrumentation and Methods for Astrophysics · Physics 2010-03-26 Andrew Skemer , Philip Hinz , William Hoffmann , Laird Close , Sarah Kendrew , Richard Mathar , Remko Stuik , Thomas Greene , Charles Woodward , Michael Kelley

In magnetic fields stronger than B_Q = 4.4 X 10^13 Gauss, an electron's Landau excitation energy exceeds its rest energy. I review the physics of this strange regime and some of its implications for the crusts and magneto- spheres of…

Astrophysics · Physics 2009-10-31 Robert C. Duncan

We model the effect of ground movement, based on empirical experience, on the transport properties of long neutron guides by ray-tracing simulations. Our results reproduce the large losses found by an earlier study for a simple model, while…

Instrumentation and Detectors · Physics 2020-10-14 Asla Husgard , Martin A. Olsen , Rebekka Frøystad , Jonas P. Hyatt , Mads Bertelsen , Rasmus Toft-Petersen , Kim Lefmann

We study propagation of TM- and TE-polarized light in two-dimensional arrays of silver nanorods of various diameters in a gelatin background. We calculate the transmittance, reflectance and absorption of arranged and disordered nanorod…

Optics · Physics 2009-11-13 A. I. Rahachou , I. V. Zozoulenko

A millicharged neutrino propagating through magnetic fields experiences a small Lorentz-force deflection, which induces a geometric time delay. In the ultra-relativistic regime relevant for supernova neutrinos, this delay scales as $q_\nu^2…

High Energy Physics - Phenomenology · Physics 2026-05-19 Pedro Dedin Neto , AmirFarzan Esmaeili , Guilherme A. Nogueira , Pedro Cunha de Holanda , Ernesto Kemp

We report a neutron diffraction study of the magnetic structure of CeAlGe, a candidate topological semimetal that hosts a non-collinear, multi-$\mathbf{k}$ magnetic phase. By measuring both low- and high-momentum-transfer magnetic Bragg…

Strongly Correlated Electrons · Physics 2025-10-01 V. Pomjakushin , A. Podlesnyak , P. Puphal , S. Shin , J. S. White , E. Pomjakushina

Low Gain Avalanche Detectors built on n-type substrate (nLGADs) have been developed by IMB-CNM to enhance the detection of low-penetrating particles, with a wide range of applications from medicine, industry to synergies with developments…

We apply the method of slowly-varying amplitudes of the electrical and magnet fields to integro-differential system of nonlinear Maxwell equations. The equations are reduced to system of differential Nonlinear Maxwell amplitude Equations…

Pattern Formation and Solitons · Physics 2007-05-23 Lubomir M. Kovachev