Abstract
We show that correlated dynamics in wave packets of doubly excited helium can be followed in real time by a pump-probe setup based on 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.
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Notes
- 1.
Such as single ionization or ejection of one electron by each pulse.
- 2.
We obtain the autoionizing DES as isolated states by exterior complex scaling, cf. [12].
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Acknowledgements
We acknowledge support by the FWF-Austria, grants No. SFB041 and P21141-N16 (S.N. and J.B.) and by the NSF through a grant to ITAMP (J.F.). C.T. and L.A.C. acknowledge support from LANL, which is operated by LANS, LLC for the NNSA of the U.S. DOE under Contract No. DE-AC52-06NA25396. The computations used the Vienna Scientific Cluster, Institutional Computing resources at Los Alamos National Laboratory, and NSF TeraGrid resources provided by NICS and TACC under grant TG-PHY090031.
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Feist, J., Nagele, S., Ticknor, C., Schneider, B.I., Collins, L.A., Burgdörfer, J. (2012). Attosecond Pump-Probe of Doubly Excited States of Helium through Two-Photon Interferometry. In: Yamanouchi, K., Katsumi, M. (eds) Multiphoton Processes and Attosecond Physics. Springer Proceedings in Physics, vol 125. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28948-4_31
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