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Ultrafast pump-probe spectroscopy: femtosecond dynamics in Liouville space
1989
The Journal of Physical Chemistry
A theory for ultrafast pump-probe spectroscopy is developed using a correlation function description of molecular nonlinear optical processes which is based on the density matrix and its evolution in Liouville space. The Liouville space description applies to isolated small molecules as well as complex systems in condensed phases. We identify a condition, called ultrafast dephasing, which allows the probe absorption to be written in terms of an intuitive picture of instantaneous preparation,
doi:10.1021/j100362a006
fatcat:j3wbudgcwracdjlharw4kb7bre