Quantum Field Theory of the Pinned Density Wave
Abstract
A model is discussed in which an electric field induces quantum nucleation of solitonantisoliton pairs in a pinned charge or spin density wave. Coulomb blockade prevents pair creation until the electric field exceeds a sharp threshold value, which can be much smaller than the classical depinning field. We calculate the vacuum state energy and expectation value of the phase, which is treated as a quantum scalar field. We find that the phase can also be much smaller, below threshold, than predicted by classical ``sliding'' density wave models.
 Publication:

arXiv eprints
 Pub Date:
 November 1998
 DOI:
 10.48550/arXiv.condmat/9811103
 arXiv:
 arXiv:condmat/9811103
 Bibcode:
 1998cond.mat.11103M
 Keywords:

 Condensed Matter  Superconductivity;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory
 EPrint:
 9 pages, 5 figures