Spin Charge Separation in the Quantum Spin Hall State
arXiv:0801.0252 · doi:10.1103/PhysRevLett.101.086802
Abstract
The quantum spin Hall state is a topologically non-trivial insulator state protected by the time reversal symmetry. We show that such a state always leads to spin-charge separation in the presence of a flux. Our result is generally valid for any interacting system. We present a proposal to experimentally observe the phenomenon of spin-charge separation in the recently discovered quantum spin Hall system.
acknowledgement and references revised
References in corpus (11)
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Quantum Spin Hall Insulator State in HgTe Quantum Wells
- Topological Mott Insulators
- Quantum Spin Hall Effect and Topologically Invariant Chern Numbers
- Electron fractionalization in two-dimensional graphenelike structures
- A General Theorem Relating the Bulk Topological Number to Edge States in Two-dimensional Insulators
- Helical edge and surface states in HgTe quantum wells and bulk insulators
- Edge solitons of topological insulators and fractionalized quasiparticles in two dimensions
- Spin-charge Separated Solitons in a Topological Band Insulator
- Many-body generalization of the Z2 topological invariant for the quantum spin Hall effect
- Mutual-Chern-Simons effective theory of doped antiferromagnets