期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 51, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6455/aa96e7
关键词
coherent ionisation; atomic double slit; ultra-fast entanglement
资金
- Swedish Foundation for Strategic Research
- Swedish Research Council
- Knut and Alice Wallenberg Foundation
- European Research Council (PALP)
- NSF [PHY-1307083]
Ionisation with ultrashort pulses in the extreme ultraviolet (XUV) regime can be used to prepare an ion in a superposition of spin-orbit substates. In this work, we study the coherence properties of such a superposition, created by ionising xenon atoms using two phase-locked XUV pulses at different frequencies. In general, if the duration of the driving pulse exceeds the quantum beat period, dephasing will occur. If however, the frequency difference of the two pulses matches the spin-orbit splitting, the coherence can be efficiently increased and dephasing does not occur.
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