Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
J. Phys. Colloques 46 (1985) C7-147-C7-150
DOI: 10.1051/jphyscol:1985728
TUNNELING AT LOW TEMPERATURES IN CONDENSED MEDIA
P.E. Parris et R. SilbeyMassachusetts Institute of Technology, Cambridge, MA 02139, U.S.A.
Abstract
Tunneling processes at low temperatures in condensed phases have been under intense study recently. We examine the interplay between vibrational relaxation and transport in the low temperature dynamics of quasiparticle tunneling in a double well potential. We find that at sufficiently low temperatures, the description of the dynamics strongly resembles that of a multi-site spin jump model.