Kell Mortensen, Y. Tomkiewicz, et al.
Solid State Communications
A one-sentence nonalgebraic evaluation of averages, such as occur in the theory of the Debye-Waller factor, is given, which is valid for certain types of anharmonic modes and also for ensembles more general than the canonical ensemble.
Kell Mortensen, Y. Tomkiewicz, et al.
Solid State Communications
Y. Tomkiewicz, T.D. Schultz, et al.
Physical Review Letters
Y. Tomkiewicz, E.M. Engler, et al.
Physical Review Letters
T.D. Schultz, D.C. Mattis, et al.
Reviews of Modern Physics