Work

Fractional Topological Insulators

Year: 2009

Type: article

Abstract: We analyze generalizations of two-dimensional topological insulators which can be realized in interacting, time reversal invariant electron systems. These states, which we call fractional topological insulators, contain excitations with fractional charge and statistics in addition to protected edge modes. In the case of s(z) conserving toy models, we show that a system is a fractional topological insulator if and only if sigma(sH)/e* is odd, where sigma(sH) is the spin-Hall conductance in units of e/2pi, and e* is the elementary charge in units of e.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.103.196803

Authors: Michael Levin, Ady Stern

Institutions: Harvard University, University of California, Santa Barbara, Weizmann Institute of Science

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

OpenAlex ID: W1967475705

FWCI: 11.3

Cites: 13

Cited by: 319

Related to: 10