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physics.atom-ph2017★ 33 cited
Absolute strong-field ionization probabilities of ultracold rubidium atoms
Philipp Wessels, Bernhard Ruff, Tobias Kroker +5
We report on precise measurements of absolute nonlinear ionization probabilities obtained by exposing optically trapped ultracold rubidium atoms to the field of an ultrashort laser…
physics.atom-ph2011★ 135 cited
Frequency metrology in quantum degenerate helium: Direct measurement of the 2 3S1 - 2 1S0 transition
R. van Rooij, J. S. Borbely, J. Simonet +4
Precision spectroscopy of simple atomic systems has refined our understanding of the fundamental laws of quantum physics. In particular, helium spectroscopy has played a crucial ro…