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Quantum coherence in photo-ionisation with tailored XUV pulses

Carlström, Stefanos LU ; Mauritsson, Johan LU ; Schafer, Kenneth J. LU ; L'Huillier, Anne LU and Gisselbrecht, Mathieu LU (2018) In Journal of Physics B: Atomic, Molecular and Optical Physics 51(1).
Abstract

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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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
atomic double slit, coherent ionization, ultra-fast entanglement
in
Journal of Physics B: Atomic, Molecular and Optical Physics
volume
51
issue
1
publisher
IOP Publishing
external identifiers
  • scopus:85038622606
ISSN
0953-4075
DOI
language
English
LU publication?
yes
id
69867db6-c757-40c8-90bb-754d68a2b399
date added to LUP
2018-01-03 07:33:55
date last changed
2018-05-29 11:56:33
@article{69867db6-c757-40c8-90bb-754d68a2b399,
  abstract     = {<p>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.</p>},
  articleno    = {015201},
  author       = {Carlström, Stefanos and Mauritsson, Johan and Schafer, Kenneth J. and L'Huillier, Anne and Gisselbrecht, Mathieu},
  issn         = {0953-4075},
  keyword      = {atomic double slit,coherent ionization,ultra-fast entanglement},
  language     = {eng},
  month        = {01},
  number       = {1},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics B: Atomic, Molecular and Optical Physics},
  title        = {Quantum coherence in photo-ionisation with tailored XUV pulses},
  url          = {http://dx.doi.org/},
  volume       = {51},
  year         = {2018},
}