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In the atmospheric plasma of a strongly magnetized neutron star, vacuum polarization can induce a Mikheyev-Smirnov-Wolfenstein like resonance across which a X-ray photon may (depending on its energy) convert from one mode into the other,…

Astrophysics · Physics 2009-11-07 Dong Lai , Wynn C. G. Ho

A long-standing prediction of quantum electrodynamics, yet to be experimentally observed, is the interaction between real photons in vacuum. As a consequence of this interaction, the vacuum is expected to become birefringent and dichroic if…

High Energy Physics - Phenomenology · Physics 2017-12-29 Sergey Bragin , Sebastian Meuren , Christoph H. Keitel , Antonino Di Piazza

We have considered collective effects in $\nu \bar{\nu}$ synchrotron radiation from an ultrarelativistic degenerate electron gas in neutron stars with strong magnetic fields. For this problem we apply a calculation method which explicitly…

Astrophysics · Physics 2009-10-30 L. B. Leinson , A. Perez

We study the neutrino anti-neutrino pair synchrotron emission from electrons and protons in a relativistic quantum approach. This process occurs only under a strong magnetic field, and it is considered to be one of effective processes for…

High Energy Physics - Phenomenology · Physics 2020-04-15 Tomoyuki Maruyama A. Baha Balantekin , Myung-Ki Cheoun , Toshitaka Kajino , Grant J. Mathews

We model the emission of high energy photons due to relativistic charged particle motion in intense laser-plasma interactions. This is done within a particle-in-cell code, for which high frequency radiation normally cannot be resolved due…

Plasma Physics · Physics 2015-12-14 Erik Wallin , Arkady Gonoskov , Mattias Marklund

The radiation emission spectra of polarized photons emitted from charged particles in single oriented crystals are obtained in Bayer-Katkov quasiclassical approach. The results of numerical calculations are presented in the region of small…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. M. Darbinyan , N. L. Ter-Isaakyan

We recently derived, using diagrammatic methods, the leading-order hard photon emission rate in ultra-relativistic plasmas. This requires a correct treatment of multiple scattering effects which limit the coherence length of emitted…

High Energy Physics - Phenomenology · Physics 2010-02-16 Peter Arnold , Guy D. Moore , Laurence G. Yaffe

It is known that the linearly polarized photons can partly transform to circularly polarized ones via forward Compton scattering in a background such as the external magnetic field or noncommutative space time. Based on this fact we explore…

High Energy Physics - Phenomenology · Physics 2017-03-08 S. Tizchang , S. Batebi , M. Haghighat , R. Mohammadi

Within the scope of the relativistic quantum theory for electron-laser interaction in a medium and using the resonant approximation for the two degenerated states of an electron in a monochromatic radiation field [1] a nonperturbative…

Quantum Physics · Physics 2007-05-23 H. K. Avetissian , A. L. Khachatryan , G. F. Mkrtchian

Electron and positron beams in storage-rings self-polarize by emitting spin-flipping synchrotron radiation. If new ultralight particles couple to $e^\pm$, their emission in synchrotron-like radiation would modify the characteristic…

High Energy Physics - Phenomenology · Physics 2020-08-28 Iftah Galon

We consider emission of a photon by an electron in the field of a strong laser wave. Polarization effects in this process are important for a number of physical problems. A probability of this process for circularly or linearly polarized…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. Yu. Ivanov , G. L. Kotkin , V. G. Serbo

We consider the coupling of the electromagnetic vacuum field with an oscillating perfectly-reflecting mirror in the nonrelativistic approximation. As a consequence of the frequency modulation associated to the motion of the mirror, low…

Quantum Physics · Physics 2009-10-31 J. P. F. Mendonca , P. A. Maia Neto , F. I. Takakura

As charged particles surpass the speed of light in an optical medium they produce radiation - analogously to the way jet planes surpass the speed of sound and produce a sonic boom. This radiation emission, known as the Cherenkov effect, is…

Both the standard theory of thermal radio emission and the synchrotron theory encounter some difficulties. The most crucial for the former one is nonpossibility to explain the radio spectrum of Venus in the decimeter range (Ksanfomality…

Astrophysics · Physics 2007-05-23 F. V. Prigara

The self-polarization of relativistic electrons or positrons moving in a magnetic field at a storage ring occurs through the emission of spin-flip synchrotron radiation, known as the Sokolov-Ternov effect. The resulting transverse…

High Energy Physics - Phenomenology · Physics 2024-07-24 Xu Cao , Yu-Tie Liang , Rong-Gang Ping

We consider emission of a photon by an electron in the field of a strong laser wave. A probability of this process for circularly or linearly polarized laser photons and for arbitrary polarization of all other particles is calculated. We…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Yu. Ivanov , G. L. Kotkin , V. G. Serbo

The general model for incoherent synchrotron radiation has long been known, with the first theory being published by Westfold in $1959$ and continued by Westfold and Legg in $1968$. When this model was first developed it was applied to…

High Energy Astrophysical Phenomena · Physics 2015-06-24 Diarmaid de Búrca , Andrew Shearer

A derivation of fully polarization-resolved probabilities is provided for high-energy photon emission and electron-positron pair production in ultrastrong laser fields. The probabilities resolved in both electron spin and photon…

High Energy Physics - Phenomenology · Physics 2022-07-13 Yue-Yue Chen , Karen Z. Hatsagortsyan , Christoph H. Keitel , Rashid Shaisultanov

In vacuum high-intensity lasers can cause photon-photon interaction via the process of virtual vacuum polarization which may be measured by the phase velocity shift of photons across intense fields. In the optical frequency domain, the…

High Energy Physics - Phenomenology · Physics 2015-05-27 Kensuke Homma , Dieter Habs , Toshiki Tajima

Interactions between charged particles and light occur in real space and time, yet quantum field theory usually describes them in momentum space. Whereas this approach is well suited for calculating emission probabilities and cross…