Cooling and trapping of molecules in highly excited rotational states

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Abstract

Collisional relaxation of highly rotating hydrogen molecules is investigated as a function of energy. Calculations demonstrate that inelastic collisions are dramatically suppressed for specific rotational levels of the molecule as the energy is lowered due to the closing of quasiresonant rotation-vibration channels. It is predicted that a [Formula Presented] buffer gas may be used to load these highly excited molecules into a trap without a significant loss of population. It is further predicted that evaporative cooling may be used to cool the “super rotors” to even lower temperatures.

Original languageEnglish (US)
Pages (from-to)3
Number of pages1
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume63
Issue number5
DOIs
StatePublished - 2001

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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