Eur. Phys. J. B 50, 419-423 (2006)
https://doi.org/10.1140/epjb/e2006-00166-1

Quantum signatures in the dynamics of two dipole-dipole interacting soft dimers

¹ MIUR and Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, via Archirafi 36, 90123 Palermo, Italy
² Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy
³ Department of Physics, West University of Timisoara, Bv V Parvan, Nr 4, 1900 Timisoara, Romania

Corresponding author: ^a napoli@fisica.unipa.it

Received: 7 February 2006
Published online: 5 May 2006

Abstract

The quantum covariances of physically transparent pairs of observables relative to two dimers hosted in a solid matrix are exactly investigated in the temporal domain. Both dimers possess fermionic and bosonic degrees of freedom and are dipolarly coupled. We find out and describe clear signatures traceable back to the presence and persistence of quantum coherence in the time evolution of the system. Manifestations of a competition between intramolecular and intermolecular energy migration mechanisms are brought to light. The experimental relevance of our results is briefly commented.