Observability of quantum phase fluctuations in cuprate superconductors
Superconductivity
2009-10-31 v3
Abstract
We study the order parameter phase fluctuation effects in cuprate superconductors near T=0, using a quasi-two-dimensional d-wave BCS model. An effective phason theory is obtained which is used to estimate the strength of the fluctuations, the fluctuation correction to the in-plane penetration depth, and the pair-field susceptibility. We find that while the phase fluctuation effects are difficult to observe in the renormalization of the superfluid phase stiffness, they may be observed in a pair tunneling experiment which measures the pair-field susceptibility.
Keywords
Cite
@article{arxiv.cond-mat/0006290,
title = {Observability of quantum phase fluctuations in cuprate superconductors},
author = {Hyok-Jon Kwon and Alan T. Dorsey and P. J. Hirschfeld},
journal= {arXiv preprint arXiv:cond-mat/0006290},
year = {2009}
}
Comments
RevTex, 4 pages, 3 eps figures; minor changes