Dual vortex theory of strongly interacting electrons: A non-Fermi liquid with a twist

被引:44
作者
Balents, L
Fisher, MPA
Nayak, C
机构
[1] Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA
[2] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA
[3] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90095 USA
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevB.61.6307
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
As discovered in the quantum Hall effect, a Very effective way for strongly repulsive electrons to minimize their potential energy is to aquire nonzero relative angular momentum. We pursue this mechanism for interacting two-dimensional electrons in zero magnetic field, by employing a representation of the electrons as composite bosons interacting with a Chem-Simons gauge field. This enables us to construct a dual description in which the fundamental constituents are vortices in the auxiliary boson fields. The resulting formalism embraces a cornucopia of possible phases. Remarkably, superconductivity is a generic feature, while the Fermi liquid is not. We identify a dual ZZ symmetry which, when broken (unbroken), leads to spin-charge confinement (separation). Many aspects of our earlier discussions of the nodal liquid find surprising incarnations in this new framework.
引用
收藏
页码:6307 / 6319
页数:13
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