Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kh. Kh. Shakov"'
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 39:1361-1378
Analytic solutions are developed for two-state systems (e.g. qubits) strongly perturbed by a series of rapidly changing pulses, called 'kicks'. The evolution matrix may be expressed as a time-ordered product of evolution matrices for single kicks. Si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b7119fb4c4e8c5c9f3e550b0b612824
https://doi.org/10.1088/0953-4075/39/6/009
https://doi.org/10.1088/0953-4075/39/6/009
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 36:3145-3154
Analytic expressions have been found for transition probabilities in a degenerate n-level atom interacting with a strong external field that gives a common time dependence to all of the transition matrix elements. Except for solving a simple nth-orde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0701109e7b144b235c5e740e2d127fc6
https://doi.org/10.1088/0953-4075/36/14/315
https://doi.org/10.1088/0953-4075/36/14/315
Autor:
Alexander Godunov, J. Hanni, V A Shipakov, Reinhard F. Bruch, J H McGuire, Hocine Merabet, Kh. Kh. Shakov
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 36:209-216
Time ordering of interactions in dynamic quantum multi-electron systems provides a constraint that interconnects the time evolution of different electrons. In energy space, time ordering appears as the principal value contribution from the Green func
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6882dd0b10ea76c214819e06dddcbbd3
https://doi.org/10.1088/0953-4075/36/2/303
https://doi.org/10.1088/0953-4075/36/2/303
Autor:
P B Ivanov, J H McGuire, Kh. Kh. Shakov, V A Shipakov, Reinhard F. Bruch, Hocine Merabet, J. Hanni, Alexander Godunov
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 34:5055-5069
Cross sections for ionization with excitation and for double excitation in helium are evaluated in a full second Born calculation. These full second Born calculations are compared to calculations in the independent electron approximation, where spati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c3f55c293384cc073abc3f6d4186aee
https://doi.org/10.1088/0953-4075/34/24/308
https://doi.org/10.1088/0953-4075/34/24/308
We examine time ordering effects in strongly, suddenly perturbed two-state quantum systems (kicked qubits) by comparing results with time ordering to results without time ordering. Simple analytic expressions are given for state occupation amplitudes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d419de1be4680c05beafb69bb8453a91
http://arxiv.org/abs/quant-ph/0406177
http://arxiv.org/abs/quant-ph/0406177
Publikováno v:
Scopus-Elsevier
We have found conditions required to achieve complete population transfer, via coherent population trapping, from an initial state to a designated final state at a designated time in a degenerate three-state atom, where transitions are caused by an e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15160fafe99962696e3de9a5648576ab
https://doi.org/10.1103/physreva.69.023405
https://doi.org/10.1103/physreva.69.023405
Publikováno v:
AIP Conference Proceedings.
Time ordering of interactions in dynamic quantum multi‐electron systems provides a constraint that connects the time evolution of different electrons in ion‐atom collisions. When spatial correlation between electrons is combined with time orderin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7b25db902a7b98b4540a5f21592ef0e
https://doi.org/10.1063/1.1619686
https://doi.org/10.1063/1.1619686
Autor:
Alexander Godunov, Reiner M. Dreizler, Reinhard Dörner, Horst Schmidt-Böcking, Kh. Kh. Shakov, S. G. Tolmanov, J H McGuire
Publikováno v:
Physical Review A. 63
Time connection between electrons in dynamic atomic systems is considered. We describe time correlation in terms of the Dyson time ordering operator T. In this paper we decompose T into an uncorrelated term Tunc , plus a correlated term Tcor5T2Tunc ,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::571d699a90b4ab8ecb2d7a5b8ac76521
https://doi.org/10.1103/physreva.63.052706
https://doi.org/10.1103/physreva.63.052706
Publikováno v:
Journal of Physics B: Atomic, Molecular & Optical Physics; Mar2006, Vol. 39 Issue 6, p1361-1378, 18p