Dynamic Compressibility and aging in Wigner crystals and quantum glasses
Disordered Systems and Neural Networks
2007-05-23 v1 Mesoscale and Nanoscale Physics
Abstract
We study the non-equilibrium linear response of quantum elastic systems pinned by quenched disorder with Schwinger-Keldysh real-time techniques complemented by a mean-field variational approach. We find (i) a quasi-equilibrium regime in which the analytic continuation from the imaginary-time replica results holds provided the marginality condition is enforced; (ii) an aging regime. The conductivity and compressibility are computed. The latter is found to cross over from its dynamic to static value on a scale set by the waiting time after a quench, an effect which can be probed in experiments in {\it e.g.} Wigner glasses.
Cite
@article{arxiv.cond-mat/0511486,
title = {Dynamic Compressibility and aging in Wigner crystals and quantum glasses},
author = {L. F. Cugliandolo and T. Giamarchi and P. Le Doussal},
journal= {arXiv preprint arXiv:cond-mat/0511486},
year = {2007}
}