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The change in the dressed potential of a polyatomic molecule in intense photon fields: Simple rules based on the nuclear charge‐mass ratio
Author(s) -
Saito Nakaya,
Hall George G.
Publication year - 1989
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560350205
Subject(s) - polyatomic ion , adiabatic process , atomic physics , atom (system on chip) , molecule , charge (physics) , photon , isotope , ion , chemistry , physics , quantum mechanics , computer science , embedded system
An explicit expression for the dressed potential of a polyatomic molecule, in the adiabatic approximation, is derived. This expression clearly shows the importance of the nuclear charge‐mass ratio ( NCMR ) for the change of potential due to photon fields. It is found from a simple calculation that the 1 H atom is the only atom having an abnormal NCMR value; all other atoms have similar, or the same, values. This means that only those molecules containing a 1 H atom should be strongly affected by fields. On the basis of this new physical insight, we postulate two rules, which enable us to classify molecules, with respect to their response to intense photon fields, into three classes: high‐sensitive, low‐sensitive, and insensitive molecules. Qualitative verification is also given by using water isotopes.