Quantum phase transitions in $d-wave$ superconductors
强关联电子
2007-05-23 v3 超导电性
摘要
Based on an effective Lagrangian obtained from the holon-pair boson theory of Lee and Salk [Phys. Rev. B {\bf 64}, 052501 (2001)] for high cuprates, we explore physical states involved with quantum phase transitions around a critical hole doping of superconductivity. We find a new quantum phase transition, a confinement to deconfinement transition for internal gauge charge in the superconducting phase. An antiferro- to para- magnetic transition in the superconducting state is explained in the context of the confinement to deconfinement transition. We obtain effective field theories in each region associated with the phase transitions.
引用
@article{arxiv.cond-mat/0404527,
title = {Quantum phase transitions in $d-wave$ superconductors},
author = {Ki-Seok Kim and Sung-Sik Lee and Jae-Hyeon Eom and Sung-Ho Suck Salk},
journal= {arXiv preprint arXiv:cond-mat/0404527},
year = {2007}
}
备注
5 pages, 2 figures