Classical versus quantum structures: the case of pyramidal molecules

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dc.creatorPresilla, Carlo
dc.creatorJona-Lasinio, Giovanni
dc.creatorToninelli, Cristina
dc.date2003-11-10
dc.date.accessioned2026-07-07T02:54:41Z
dc.date.available2026-07-07T02:54:41Z
dc.descriptionIn a previous paper we proposed a model to describe a gas of pyramidal molecules interacting via dipole-dipole interactions. The interaction modifies the tunneling properties between the classical equilibrium configurations of the single molecule and, for sufficiently high pressure, the molecules become localized in these classical configurations. The model explains quantitatively the shift to zero-frequency of the inversion line observed upon increase of the pressure in a gas of ammonia or deuterated ammonia. Here we analyze further the model especially with respect to stability questions.
dc.description9 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0311217
dc.identifierhttp://arxiv.org/abs/cond-mat/0311217
dc.identifierMultiscale Methods in Quantum Mechanics: Theory and Experiment, edited by P. Blanchard, G. Dell'Antonio (Birkhauser, Boston, 2004), p. 119-127
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22653
dc.subjectStatistical Mechanics
dc.subjectQuantum Physics
dc.titleClassical versus quantum structures: the case of pyramidal molecules
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