Zobrazeno 1 - 10
of 998
pro vyhledávání: '"Schoeffler P"'
Dark matter has been theorized to be charged under its own "dark electromagnetism" (dark-EM). Under this hypothesis, dark matter can behave like a cold collisionless plasma of self-interacting dark matter particles, and exhibit plasma-like instabilit
Externí odkaz:
http://arxiv.org/abs/2411.15981
Autor:
Weller, M., Kastirke, G., Rist, J., Goy, C., Khan, A., Kircher, M., Rauch, C., Schmidt, L. Ph. H., Sisourat, N., Schöffler, M. S., Dörner, R., Trinter, F., Jahnke, T.
Electronically excited atoms or molecules may deexcite by emission of a secondary electron through an Auger-Meitner decay. This deexcitation process is typically considered to be exponential in time. This is strictly speaking, however, only true for
Externí odkaz:
http://arxiv.org/abs/2411.14620
Autor:
Melzer, N., Kircher, M., Pier, A., Kaiser, L., Kruse, J., Anders, N., Stindl, J., Sommerlad, L., McGinnis, D., Schmidt, M., Nowak, L., Kügler, A., Dwojak, I., Drnec, J., Trinter, F., Schöffler, M. S., Schmidt, L. Ph., Novikovskiy, N. M., Demekhin, Ph. V., Jahnke, T., Dörner, R.
Publikováno v:
Physical Review Letters 133 (2024) 183002
We report a fully differential study of ionization of the Ne L-shell by Compton scattering of 20 keV photons. We find two physical mechanisms which modify the Compton-electron emission. Firstly, we observe scattering of the Compton electrons at their
Externí odkaz:
http://arxiv.org/abs/2411.09442
Two-dimensional particle-in-cell (PIC) simulations explore the collisionless tearing instability developing in a Harris equilibrium configuration in a pair (electron-positron) plasma, with no guide field, for a range of parameters from non-relativist
Externí odkaz:
http://arxiv.org/abs/2410.05619
Electrostatic Bursts Generated by the Ion-Ion Acoustic Instability with Solar Wind Plasma Parameters
Autor:
Afify, Mahmoud Saad, Dreher, Jürgen, Schoeffler, Kevin, Micera, Alfredo, Innocenti, Maria Elena
This study is motivated by recent observations from the Parker Solar Probe (PSP) mission, which have been identified as the ion-acoustic waves from 15 to 25 solar radii. These observations reveal characteristic sequences of narrow-band, high-frequenc
Externí odkaz:
http://arxiv.org/abs/2407.10541
Autor:
Lin, Kang, Eckart, Sebastian, Liang, Hao, Hartung, Alexander, Jacob, Sina, Ji, Qinying, Schmidt, Lothar Ph. H., Schöffler, Markus S., Jahnke, Till, Kunitski, Maksim, Dörner, Reinhard
Publikováno v:
Science 2024
Similar to the optical diffraction of light passing through a material grating, the Kapitza-Dirac effect occurs when an electron is diffracted by a standing light wave. In its original description the effect is time-independent. In the present work,
Externí odkaz:
http://arxiv.org/abs/2404.00304
Autor:
Hofmann, M., Trabert, D., Geyer, A., Anders, N., Kruse, J., Rist, J., Schmidt, L. Ph. H., Jahnke, T., Kunitski, M., Schöffler, M. S., Eckart, S., Dörner, R.
We report on strong field ionization of S- and R-propylene oxide in circularly polarized two-color laser fields. We find that the relative helicity of the two single color laser fields affects the photoelectron circular dichroism (PECD). Further, we
Externí odkaz:
http://arxiv.org/abs/2402.03215
Autor:
Russell, Brandon K., Vranic, Marija, Campbell, Paul T., Thomas, Alexander G. R., Schoeffler, Kevin M., Uzdensky, Dmitri A., Willingale, Louise
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 the order
Externí odkaz:
http://arxiv.org/abs/2309.05141
Autor:
Trabert, D., Geyer, A., Anders, N., Hofmann, M., Schöffler, M. S., Schmidt, L. Ph. H., Jahnke, T., Kunitski, M., Dörner, R., Eckart, S.
We study strong field ionization of molecular hydrogen in highly intense co-rotating two-color (CoRTC) laser fields. The measured electron momentum distributions show alternating half-rings (AHR) that are characteristic for sub-cycle interference. We
Externí odkaz:
http://arxiv.org/abs/2307.08573
The time evolution of high-energy synchrotron radiation generated in a relativistic pair plasma energized by reconnection of strong magnetic fields is investigated with two- and three-dimensional (2D and 3D) particle-in-cell (PIC) simulations. The si
Externí odkaz:
http://arxiv.org/abs/2303.16643