Noninvasive Probe of Charge Fractionalization in Quantum Spin-Hall Insulators
arXiv:1111.4581 · doi:10.1103/PhysRevB.85.195465
Abstract
When an electron with well-defined momentum tunnels into a nonchiral Luttinger liquid, it breaks up into two separate wave packets that carry fractional charges and move in opposite directions. A direct observation of this phenomenon has proven elusive, mainly due to single-particle and plasmon backscattering caused by measurement probes. This paper theoretically introduces two topological insulator devices that are naturally suited for detecting fractional charges and their velocities directly and in a noninvasive fashion.
Revised and extended version. To appear in PRB
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Cited by in corpus (16)
- Fractionalization of minimal excitations in integer quantum Hall edge channels
- Time-resolved energy dynamics after single electron injection into an interacting helical liquid
- Time-resolved pure spin fractionalization and spin-charge separation in helical Luttinger liquid based devices
- Fermi liquid approach to the quantum RC circuit: renormalization-group analysis of the Anderson and Coulomb blockade models
- Strongly correlated dynamics in multichannel quantum RC circuits
- Charge and energy fractionalization mechanism in one-dimensional channels
- From Topological Superconductivity to Quantum Hall States in Coupled Wires
- Anisotropic Quantum Spin Hall Effect, Spin-Orbital Textures and Mott Transition
- Probing dynamics of Majorana fermions in quantum impurity systems
- Transient dynamics of spin-polarized injection in helical Luttinger liquids
- Nonequilibrium noise correlations in a point contact of helical edge states
- Admittance of the SU(2) and SU(4) Anderson quantum RC circuits
- Dynamical transport measurement of the Luttinger parameter in helical edges states of 2D topological insulators
- Spin-polarized tunneling into helical edge states: asymmetry and conductances
- Nonequilibrium Spectroscopy of Topological Edge Liquids
- Charge Fractionalization in a Mesoscopic Ring