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The interaction of high energy electrons, positrons, and photons with intense laser pulses is studied in head-on collision geometry. It is shown that electrons and/or positrons undergo a cascade-type process involving multiple emissions of…

Plasma Physics · Physics 2015-06-16 S. S. Bulanov , C. B. Schroeder , E. Esarey , W. P. Leemans

Nuclear reactions induced by a strong zeptosecond laser pulse are studied theoretically in the quasiadiabatic regime where the photon absorption rate is comparable to the nuclear equilibration rate. We find that multiple photon absorption…

Nuclear Theory · Physics 2014-05-28 A. Pálffy , H. A. Weidenmüller

With analytical treatment, the classical dynamics of an ultrarelativistic electron in two counter-propagating circularly polarized strong laser beams with either co-rotating or counter-rotating direction are considered. Assuming that the…

Plasma Physics · Physics 2022-09-19 L. Aliani , Q. Z. Lv

CO2 laser-driven electron acceleration is demonstrated with particle-in-cell simulation in low-density plasma. An intense CO2 laser pulse with long wavelength excites wakefield. The bubble behind it has a broad space to sustain a large…

Plasma Physics · Physics 2015-06-19 L. G. Zhang , B. F. Shen , J. C. Xu , L. L. Ji , X. M. Zhang , W. P. Wang , X. Y. Zhao , L. Q. Yi , Y. H. Yu , Y. Shi , T. J. Xu , Z. Z. Xu

The radiation of photons by electrons is investigated in the framework of quantum electrodynamics up to the second order in the coupling constant $e$. The $N$-particle, coherent, and thermal initial states are considered and the forms of…

High Energy Physics - Theory · Physics 2022-09-08 P. O. Kazinski , T. V. Solovyev

In this article we investigate novel signatures of radiation reaction via the angular deflection of an electron beam colliding at 90 degrees with an intense laser pulse. Due to the radiation reaction effect, the electrons can be deflected…

Plasma Physics · Physics 2025-01-14 Philipp Sikorski , Alec G. R. Thomas , Stepan S. Bulanov , Matt Zepf , Daniel Seipt

In conventional nuclear experiments a beam of accelerated nuclei collides with a target nucleus that is surrounded by other nuclei in a molecule, in condensed matter, or in a plasma environment. It is shown that for low collision energies…

Nuclear Theory · Physics 2007-05-23 M. Yu. Kuchiev , B. L. Altshuler , V. V. Flambaum

Accelerated charges radiate, and therefore must lose energy. The impact of this energy loss on particle motion, called radiation reaction, becomes significant in intense-laser matter interactions, where it can reduce collision energies,…

Plasma Physics · Physics 2017-03-15 Chris Harvey , Arkady Gonoskov , Anton Ilderton , Mattias Marklund

We derive effective equations of motion for a massless charged particle coupled to the dynamical electromagnetic field having regard to the radiation back reaction. It is shown that unlike the massive case not all the divergences resulting…

High Energy Physics - Theory · Physics 2014-11-18 P. O. Kazinski , A. A. Sharapov

Quantum coherence and interference effects in atomic and molecular physics has been extensively studied due to intriguing counterintuitive physics and potential important applications. Here we present one such application of using quantum…

Atomic Physics · Physics 2013-03-11 Pankaj K. Jha

We have examined the head-on collision of two electrons in approximation of coherent states. We have shown that the character of collision depends mainly on ratio of initial relative electron's momentum to momentum uncertainty of electrons.…

Quantum Physics · Physics 2009-11-10 C. V. Usenko , V. O. Gnatovskyy , N. A. Cherkashina

Linear acceleration emission is one of the mechanisms that might explain intense coherent emissions of radio pulsars. This mechanism is not well understood, however, because the effects of collective plasma response and nonlinear plasma…

High Energy Astrophysical Phenomena · Physics 2023-07-12 Jan Benáček , Patricio A. Muñoz , Jörg Büchner , Axel Jessner

The colliding between ultra-relativistic electrons and an ultra-intense laser pulse is a powerful approach to testify the physics in strong-field QED regime. By considering spin-dependent radiation-reaction during laser-electron collision…

Plasma Physics · Physics 2020-07-02 X. S. Geng , L. L. Ji , B. F. Shen , B. Feng , Z. Guo , Q. Q. Han , C. Y. Qin , N. W. Wang , W. Q. Wang , Y. T. Wu , X. Yan , Q. Yu , L. G. Zhang , Z. Z. Xu

Laser-accelerated electron beams have been created at a kHz repetition rate from the {\it reflection} of intense ($\sim10^{18}$ W/cm$^2$), $\sim$40 fs laser pulses focused on a continuous water-jet in an experiment at the Air Force Research…

Radiation friction can have a substantial impact on electron dynamics in a transparent target exposed to a strong laser pulse. In particular, by modifying quiver electron motion, it can strongly enhance the longitudinal charge separation…

Plasma Physics · Physics 2021-05-17 Evgeny Gelfer , Alexander Fedotov , Stefan Weber

The impact of atomic excited states is investigated via a detailed model of laser-cluster interactions, which is applied to rare gas clusters in intense femtosecond pulses in the extreme ultraviolet (XUV). This demonstrates the potential…

Atomic Physics · Physics 2015-05-20 Edward Ackad , Nicolas Bigaouette , Lora Ramunno

The quantum electrodynamical vacuum polarization effects arising in the collision of a high-energy proton beam and a strong, linearly polarized laser field are investigated. The probability that laser photons merge into one photon by…

High Energy Physics - Phenomenology · Physics 2015-05-13 A. Di Piazza , K. Z. Hatsagortsyan , C. H. Keitel

We consider strong-field effects in laboratory and astrophysical plasmas and high intensity laser and cavity systems. Current state-of-the-art laser facilities are close to reaching energy scales at which quantum electrodynamics will play a…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Marklund , P. K. Shukla

The radiation pressure of next generation ultra-high intensity ($>10^{23}$ W/cm$^{2}$) lasers could efficiently accelerate ions to GeV energies. However, nonlinear quantum-electrodynamic effects play an important role in the interaction of…

In this paper we examine the behavior of small cluster of atoms in a short (10-50 fs) very intense hard x-ray (10 keV) pulse. We use numerical modeling based on the non-relativistic classical equation of motion. Quantum processes are taken…

Atomic and Molecular Clusters · Physics 2009-11-10 Zoltan Jurek , Gyula Faigel , Miklos Tegze