Work

Two Interacting Helical Edge Modes in Quantum Spin Hall Systems

Year: 2009

Type: article

Abstract: We study theoretically two interacting one-dimensional helical modes at the edges of the quantum spin Hall systems. A new type of interedge correlated liquid without a spin gap is found when the intraedge repulsion is stronger than the interedge repulsion. This liquid shows a diverging density wave and superconductivity correlations much stronger than those of the spinfull electrons. Possible experimental observations are also discussed.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.103.166403

Authors: Yukio Tanaka, Naoto Nagaosa

Institutions: Nagoya University, RIKEN, RIKEN Advanced Science Institute, The University of Tokyo

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Japan Society for the Promotion of Science

Award: Theoretical study on topology and quantum dynamics of correlated electronic systems