Zobrazeno 1 - 10
of 3 990
pro vyhledávání: '"A, Pukhov"'
Autor:
Samsonov, Alexander, Pukhov, Alexander
We propose an all-optical, single-laser-pulse scheme for generating dense, relativistic, strongly-magnetized electron-positron pair plasma. The scheme involves the interaction of an extremely intense ($I \gtrsim \SI{e24}{\watt/\cm^2}$) circularly pol
Externí odkaz:
http://arxiv.org/abs/2409.09131
Charged and quasi-neutral beams propagating through an unmagnetised plasma are subject to numerous collisionless instabilities on the small scale of the plasma skin depth. The electrostatic two-stream instability, driven by longitudinal and transvers
Externí odkaz:
http://arxiv.org/abs/2406.07977
The long proton beams present at CERN have the potential to evolve into a train of microbunches through the self-modulation instability process. The resonant wakefield generated by a periodic train of proton microbunches can establish a high accelera
Externí odkaz:
http://arxiv.org/abs/2404.19711
Autor:
Pukhov, Alexander, Reichwein, Lars
Wakefield excitation by structured electron bunches in hollow gaps between plasma wedges is studied using three-dimensional particle-in-cell simulations. The main part of the electron bunch has a triangular current distribution in the longitudinal di
Externí odkaz:
http://arxiv.org/abs/2403.09427
A Higgs Factory is considered the highest priority next collider project by the high-energy physics community. Very advanced designs based on radio-frequency cavities exist, and variations on this approach are still being developed. Recently, an opti
Externí odkaz:
http://arxiv.org/abs/2401.14765
Autor:
Alguero, G., Belanger, G., Boudjema, F., Chakraborti, S., Goudelis, A., Kraml, S., Mjallal, A., Pukhov, A.
micrOMEGAs is a numerical code to compute dark matter (DM) observables in generic extensions of the Standard Model of particle physics. We present a new version of micrOMEGAs that includes a generalization of the Boltzmann equations governing the DM
Externí odkaz:
http://arxiv.org/abs/2312.14894
The dynamics of open quantum systems connected with several reservoirs attract great attention due to its importance in quantum optics, biology, quantum thermodynamics, transport phenomena, etc. In many problems, the Born approximation is applicable
Externí odkaz:
http://arxiv.org/abs/2312.12212
Autor:
Zheng, Chuan, Fedorets, Pavel, Engels, Ralf, Engin, Ilhan, Glückler, Harald, Kannis, Chrysovalantis, Schnitzler, Norbert, Soltner, Helmut, Chitgar, Zahra, Gibbon, Paul, Reichwein, Lars, Pukhov, Alexander, Zielbauer, Bernhard, Büscher, Markus
Polarized fusion has long ago be proposed as a method to strongly increase the efficiency of fusion reactors. However, the required nuclear spin-polarization conservation in fusion plasmas has never been proven experimentally. Here we report on first
Externí odkaz:
http://arxiv.org/abs/2310.04184
We investigate Collisionless Shock Acceleration of spin-polarized ${}^3$He for laser pulses with normalized vector potentials in the range $a_0 = 100-200$. The setup utilized in the 2D-PIC simulations consists of a solid Carbon foil that is placed in
Externí odkaz:
http://arxiv.org/abs/2309.06271
We briefly review scenarios with feebly interacting particles (FIMPs) as dark matter candidates. The discussion covers issues with dark matter production in the early universe as well as signatures of FIMPs at the high energy and high intensity front
Externí odkaz:
http://arxiv.org/abs/2309.00491