6533b82bfe1ef96bd128d60d
RESEARCH PRODUCT
Competition between inter- and intra- molecular energy exchanges in a simple quantum model of a dimer
Teresa CusatiTeresa CusatiAntonino MessinaAnna Napolisubject
DimerIntermolecular forceDegrees of freedom (physics and chemistry)ObservableCondensed Matter PhysicsBiochemistryQuantum covarianceCompetition (economics)chemistry.chemical_compoundMonomerchemistryEnergy transferChemical physicsIntermolecular energy exchangeMoleculePhysical and Theoretical ChemistryAtomic physicsQuantumdescription
Abstract We propose a fully quantum model to describe the dynamics of a possible radiationless energy transfer process between identical and nearly localized molecules or monomers coupled through a dipole–dipole term. The system is studied as an environmentally isolated dimeric pair and we find that its dynamics exhibits a competition between the process ruling out the transfer of energy among different degrees of freedom of a given monomer and the one steering the intermolecular passage of excitations from a monomer to the other one. Such a competition is quantitatively characterized investigating on the temporal behaviour of quantum covariances of some couples of appropriate observables having a clear physical meaning.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-09-01 | Journal of Molecular Structure: THEOCHEM |