Attosecond Two-Photon Interferometry for Doubly Excited States of Helium

被引：36
|
作者：
Feist, J. [1 ]
Nagele, S. [2 ]
Ticknor, C. [3 ]
Schneider, B. I. [4 ]
Collins, L. A. [3 ]
Burgdoerfer, J. [2 ]
机构：
[1] Harvard Smithsonian Ctr Astrophys, ITAMP, Cambridge, MA 02138 USA
[2] Vienna Univ Technol, Inst Theoret Phys, A-1040 Vienna, Austria
[3] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[4] Natl Sci Fdn, Off Cyberinfrastruct, Arlington, VA 22230 USA
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 09期
关键词：
EMISSION; DYNAMICS; PULSES; ATOMS;
D O I：
10.1103/PhysRevLett.107.093005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 easily accessible noncoincident single-electron spectra. We analyze the interferometric signal in terms of a semianalytical model which is validated by a numerical solution of the time-dependent two-electron Schrodinger equation in its full dimensionality.
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页数：5
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