Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Nagele, S."'
Relative phases of atomic above-threshold ionization wavepackets have been investigated in a recent experiment [L. J. Zipp, A. Natan, and P. H. Bucksbaum, Optica \textbf{1}, 361-364 (2014)] exploiting interferences between different pathways in a wea
Externí odkaz:
http://arxiv.org/abs/2107.12414
Autor:
Borbély, S., Tong, X. -M., Nagele, S., Feist, J., Březinová, I., Lackner, F., Nagy, L., Tőkési, K., Burgdörfer, J.
Publikováno v:
Physical Review A 98, 012707 (2018)
We present ab-initio calculations of the electronic differential energy transfer (DET) cross-sections for antiprotons with energies between $3$keV and $1$MeV interacting with helium. By comparison with simulations employing the mean-field description
Externí odkaz:
http://arxiv.org/abs/1901.10212
Publikováno v:
Phys. Rev. A 90, 052706 (2014)
We theoretically investigate the single and double ionization of the He atom by antiproton impact for projectile energies ranging from $3$~keV up to $1000$~keV. We obtain accurate total cross sections by directly solving the fully correlated two-elec
Externí odkaz:
http://arxiv.org/abs/1409.1379
Publikováno v:
Phys. Rev. Lett. 109, 013201 (2012)
We explore excitation and ionization by neutron impact as a novel tool for the investigation of electron-electron correlations in helium. We present single and double ionization spectra calculated in accurate numerical ab-initio simulations for incom
Externí odkaz:
http://arxiv.org/abs/1201.5508
Publikováno v:
Phys. Rev. Lett. 107, 093005 (2011)
We show that the correlation dynamics in coherently excited doubly excited resonances of helium can be followed in real time by two-photon interferometry. This approach promises to map the evolution of the two-electron wave packet onto experimentally
Externí odkaz:
http://arxiv.org/abs/1104.3798
Autor:
Pazourek, R., Feist, J., Nagele, S., Persson, E., Schneider, B. I., Collins, L. A., Burgörfer, J.
Publikováno v:
Phys. Rev. A 83, 053418 (2011)
We analyze two-photon double ionization of helium in both the nonsequential and sequential regime. We show that the energy spacing between the two emitted electrons provides the key parameter that controls both the energy and the angular distribution
Externí odkaz:
http://arxiv.org/abs/1102.1751
Probing Electron Correlation via Attosecond XUV Pulses in the Two-Photon Double Ionization of Helium
Autor:
Feist, J., Nagele, S., Pazourek, R., Persson, E., Schneider, B. I., Collins, L. A., Burgdörfer, J.
Publikováno v:
Phys. Rev. Lett. 103, 063002 (2009)
Recent experimental developments of high-intensity, short-pulse XUV light sources are enhancing our ability to study electron-electron correlations. We perform time-dependent calculations to investigate the so-called "sequential" regime (photon energ
Externí odkaz:
http://arxiv.org/abs/0812.0373
Autor:
Feist, J., Nagele, S., Pazourek, R., Persson, E., Schneider, B. I., Collins, L. A., Burgdörfer, J.
Publikováno v:
Phys. Rev. A 77, 043420 (2008)
We present accurate time-dependent ab initio calculations on fully differential and total integrated (generalized) cross sections for the nonsequential two-photon double ionization of helium at photon energies from 40 to 54 eV. Our computational meth
Externí odkaz:
http://arxiv.org/abs/0803.0511
Autor:
Kaldun, A., Blättermann, A., Stooß, V., Donsa, S., Wei, H., Pazourek, R., Nagele, S., Ott, C., Lin, C. D., Burgdörfer, J., Pfeifer, T.
Publikováno v:
Science, 2016 Nov 01. 354(6313), 738-741.
Externí odkaz:
https://www.jstor.org/stable/44710983
Autor:
Schultze, M., Fieß, M., Karpowicz, N., Gagnon, J., Korbman, M., Hofstetter, M., Neppl, S., Cavalieri, A. L., Komninos, Y., Mercouris, Th., Nicolaides, C. A., Pazourek, R., Nagele, S., Feist, J., Burgdörfer, J., Azzeer, A. M., Ernstorfer, R., Kienberger, R., Kleineberg, U., Goulielmakis, E., Krausz, F., Yakovlev, V. S.
Publikováno v:
Science, 2010 Jun . 328(5986), 1658-1662.
Externí odkaz:
https://www.jstor.org/stable/40656173