Zobrazeno 1 - 10
of 51
pro vyhledávání: '"C. H. Keitel"'
Autor:
H. Bekker, A. Borschevsky, Z. Harman, C. H. Keitel, T. Pfeifer, P. O. Schmidt, J. R. Crespo López-Urrutia, J. C. Berengut
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Atomic clocks are based on the frequency of optical transitions and offer high precision. Here the authors demonstrate a configuration crossing in the highly charged ion praseodymium (Pr$${}^{9+}$$ 9+ ) and determine the frequency of a potential refe
Externí odkaz:
https://doaj.org/article/e1180d5c7b074c9499662a05f9e83f73
Autor:
P. San Miguel Claveria, X. Davoine, J. R. Peterson, M. Gilljohann, I. Andriyash, R. Ariniello, C. Clarke, H. Ekerfelt, C. Emma, J. Faure, S. Gessner, M. J. Hogan, C. Joshi, C. H. Keitel, A. Knetsch, O. Kononenko, M. Litos, Y. Mankovska, K. Marsh, A. Matheron, Z. Nie, B. O'Shea, D. Storey, N. Vafaei-Najafabadi, Y. Wu, X. Xu, J. Yan, C. Zhang, M. Tamburini, F. Fiuza, L. Gremillet, S. Corde
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023085 (2022)
An electron or electron-positron beam streaming through a plasma is notoriously prone to microinstabilities. For a dilute ultrarelativistic infinite beam, the dominant instability is a mixed mode between longitudinal two-stream and transverse filamen
Externí odkaz:
https://doaj.org/article/76cadb1aab7249d4946cea7ca3bd63a2
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 4, p 040704 (2022)
Numerous applications of Mössbauer spectroscopy are related to a unique resolution of absorption spectra of resonant radiation in crystals, when the nucleus absorbs a photon without a recoil. However, the narrow nuclear linewidth renders efficient d
Externí odkaz:
https://doaj.org/article/abeee5c0ed284436b58b75ec7491724a
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013214 (2021)
The local constant field approximation (LCFA) is widely used in the study of QED effects in laser-matter interactions, with the justification that the classical strong-field parameter of the impinging laser beam is large. Here, the failure of this co
Externí odkaz:
https://doaj.org/article/b7e4aed6292b4e3fa938c520eec230b5
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013245 (2021)
Exact solutions of the Dirac equation, a system of four partial differential equations, are rare. The vast majority of them are for highly symmetric stationary systems. Moreover, only a handful of solutions for time dependent dynamics exists. Given t
Externí odkaz:
https://doaj.org/article/e8509dd4a8cb414fad238b4a07071c53
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 012002 (2020)
Two-loop self-energy corrections to the bound-electron g factor are investigated theoretically to all orders in the nuclear binding strength parameter Zα. The separation of divergences is performed by dimensional regularization, and the contributing
Externí odkaz:
https://doaj.org/article/bcc6c1a5fed14fa7aae07c869b9c4d3f
Autor:
K. Poder, M. Tamburini, G. Sarri, A. Di Piazza, S. Kuschel, C. D. Baird, K. Behm, S. Bohlen, J. M. Cole, D. J. Corvan, M. Duff, E. Gerstmayr, C. H. Keitel, K. Krushelnick, S. P. D. Mangles, P. McKenna, C. D. Murphy, Z. Najmudin, C. P. Ridgers, G. M. Samarin, D. R. Symes, A. G. R. Thomas, J. Warwick, M. Zepf
Publikováno v:
Physical Review X, Vol 8, Iss 3, p 031004 (2018)
The description of the dynamics of an electron in an external electromagnetic field of arbitrary intensity is one of the most fundamental outstanding problems in electrodynamics. Remarkably, to date, there is no unanimously accepted theoretical solut
Externí odkaz:
https://doaj.org/article/1f773c284fe742b981cfc0e3a56fb879
Autor:
M. Verschl, C. H. Keitel
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 10, Iss 2, p 024001 (2007)
The dynamics of an electron in crossed laser fields is investigated analytically. Two different standing wave configurations are compared. The counterpropagating laser waves are either linearly or circularly polarized. Both configurations have in com
Externí odkaz:
https://doaj.org/article/76a98c1c3b3646cf81b00d7980c3028f
Publikováno v:
Physical Review A
When collecting spectroscopic data on at least four isotopes, nonlinearitiesin the King plot are a possible sign of Physics beyond the Standard Model. Inthis work, an improved approach to the search for hypothetical new interactionswith isotope shift
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6433af2ea7841d4d5a6197c2812ecd4
https://doi.org/10.1103/physreva.106.062801
https://doi.org/10.1103/physreva.106.062801
Publikováno v:
Physical Review D
Physical Review
Physical Review
Accelerated charges emit both electromagnetic and gravitational radiation. Classically, it was found that the electromagnetic energy spectrum radiated by an electron in a monochromatic plane wave is proportional to the corresponding gravitational one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee39ef51d1b45323a7a99c1ff0af6e0e
http://arxiv.org/abs/2208.02215
http://arxiv.org/abs/2208.02215
