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arXiv · 1104.3798

Attosecond two-photon interferometry for doubly excited states of helium

J. Feist·S. Nagele·C. Ticknor·B. I. Schneider·L. A. Collins·J. Burgdörfer
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Abstract

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 non-coincident single electron spectra. We analyze the interferometric signal in terms of a semi-analytical model which is validated by a numerical solution of the time-dependent two-electron Schrödinger equation in its full dimensionality.

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J. Feist, S. Nagele, C. Ticknor, B. I. Schneider, L. A. Collins, J. Burgdörfer. 2011-04-19. Attosecond two-photon interferometry for doubly excited states of helium. https://doi.org/10.1103/physrevlett.107.093005

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