000080575 001__ 80575
000080575 005__ 20180317092949.0
000080575 037__ $$aCONF
000080575 245__ $$aUltrafast Structural dynamics in solid hydrogens: A model for condensed phase quantum systems
000080575 269__ $$a2002
000080575 260__ $$c2002
000080575 336__ $$aConference Papers
000080575 520__ $$aStructural dynamics in solid hydrogens is impulsively triggered by femtosecond excitation of the lowest Rydberg state of the NO impurity. The resulting charge redistribution induces a local radial deformation of the medium (\"bubble\" formation) around the impurity. The dynamics of bubble expansion and the ensuing medium response are probed in real-time by pump-probe spectroscopy. The results show that bubble formation is a one-way process without recurrence of the cage motion and is complete in .apprx.1-2 ps. The dynamics in solid hydrogens is modelled by a classical model, which takes into account the emission of sound, friction and surface tension as energy dissipation channels. The first one being the overwhelming channel. For comparison dynamics in solid Ne is also recorded and shows an initial expansion of the matrix cage around the impurity, followed by a low frequency recurrence. The results in solid Ne are complemented by preliminary Mol. Dynamics simulations. [on SciFinder (R)]
000080575 700__ $$0240045$$g122830$$aChergui, Majed
000080575 700__ $$0243929$$g136612$$aVigliotti, Franco
000080575 700__ $$aBonacina, Luigi$$g161283$$0240903
000080575 773__ $$tAbstracts of Papers, 223rd ACS National Meeting, Orlando, FL, United States, April 7-11, 2002$$qPHYS-239
000080575 909CO $$pSB$$ooai:infoscience.tind.io:80575$$pconf
000080575 909C0 $$0252026$$pLSU$$xU10862
000080575 937__ $$aLSU-CONF-2002-012
000080575 970__ $$a218/LSU
000080575 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000080575 980__ $$aCONF