Dissipative Hot-spot Enabled Shock and Bounce Dynamics via Terahertz Quantum Quenches in Helical Edge States
arXiv:2009.06654 · doi:10.1103/PhysRevLett.127.026801
Abstract
We study quantum quenches of helical liquids with spin-flip inelastic scattering. Counterpropagating charge packets in helical edges can be created by an ultrashort electric pulse applied across a 2D topological insulator. Localized "hot spots" that form due to scattering enable two types of strongly nonlinear wave dynamics. First, propagating packets develop self-focusing shock fronts. Second, colliding packets with opposite charge can exhibit near-perfect retroreflection, despite strong dissipation. This leads to frequency doubling that could be detected experimentally from emitted terahertz radiation.
arXiv commentv2: added collision dynamics; 7+22 pages, 4+13 figures
References in corpus (58)
- Topological Insulators
- Topological insulators and superconductors
- Quantum Spin Hall Effect in Graphene
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Topological Order and the Quantum Spin Hall Effect
- Quantum Spin Hall Insulator State in HgTe Quantum Wells
- Helical liquids and Majorana bound states in quantum wires
- Higher-Order Topological Insulators
- Chiral Anomaly and Classical Negative Magnetoresistance of Weyl Metals
- Bosonization and Strongly Correlated Systems
- Bismuthene on a SiC Substrate: A Candidate for a New High-Temperature Quantum Spin Hall Paradigm
- Transport in Out-of-Equilibrium XXZ Chains: Exact Profiles of Charges and Currents
- Observation of the Quantum Spin Hall Effect up to 100 Kelvin in a Monolayer Crystal
- The Helical Liquid and the Edge of Quantum Spin Hall Systems
- Edge conduction in monolayer WTe2
- Emergent hydrodynamics in integrable quantum systems out of equilibrium
- Stability of the quantum spin Hall effect: effects of interactions, disorder, and Z_2 topology
- One-Dimensional Quantum Liquids: Beyond the Luttinger Liquid Paradigm
- Spin Filtered Edge States and Quantum Hall Effect in Graphene
- Higgs Amplitude Mode in BCS Superconductors NbTiN induced by Terahertz Pulse Excitation
- Observation of Quantum Spin Hall States in InAs/GaSb Bilayers under Broken Time-Reversal Symmetry
- Tunable symmetry breaking and helical edge transport in a graphene quantum spin Hall state
- Kondo effect in the helical edge liquid of the quantum spin Hall state
- In-plane transport and enhanced thermoelectric performance in thin films of the topological insulators Bi_2Te_3 and Bi_2Se_3
- Quantum quench dynamics
- Helical edge resistance introduced by charge puddles
- Observation of a One-Dimensional Spin-Orbit Gap in a Quantum Wire
- Inelastic electron backscattering in a generic helical edge channel
- Slow imbalance relaxation and thermoelectric transport in graphene
- Thermal transport in a Luttinger liquid
- Axial anomaly and longitudinal magnetoresistance of a generic three dimensional metal
- Hydrodynamic theory of thermoelectric transport and negative magnetoresistance in Weyl semimetals
- Unexpected edge conduction in HgTe quantum wells under broken time reversal symmetry
- Resistance of helical edges formed in a semiconductor heterostructure
- Edge Transport in the Trivial Phase of InAs/GaSb
- Nuclear magnetism and electron order in interacting one-dimensional conductors
- Conductivity of a generic helical liquid
- Luttinger Liquid at the Edge of a Graphene Vacuum
- Localization at the Edge of 2D Topological Insulator by Kondo Impurities with Random Anisotropies
- Conductance through a helical state in an InSb nanowire
- Quantum Shock Waves - the case for non-linear effects in dynamics of electronic liquids
- Nuclear-spin-induced localization of the edge states in two-dimensional topological insulators
- Interacting topological edge channels
- Evidence for Helical Nuclear Spin Order in GaAs Quantum Wires
- Tuning Edge States in Strained-Layer InAs/GaInSb Quantum Spin Hall Insulators
- Effects of nuclear spins on the transport properties of the edge of two-dimensional topological insulators
- Coulomb drag between two spin incoherent Luttinger liquids
- Nonlocal Thermoelectricity in a S-TI-S Junction in Contact with a N-Metal Probe: Evidence for Helical Edge States
- Transport in helical Luttinger Liquid with Kondo impurities
- Gapless insulating edges of dirty interacting topological insulators
- Topological Protection from Random Rashba Spin-Orbit Backscattering: Ballistic Transport in a Helical Luttinger Liquid
- Helical Quantum Edge Gears in 2D Topological Insulators
- Quantum quench spectroscopy of a Luttinger liquid: Ultrarelativistic density wave dynamics due to fractionalization in an XXZ chain
- Nonlocal thermoelectricity in a topological Andreev interferometer
- Transport in partially equilibrated inhomogeneous quantum wires
- Dynamical separation of bulk and edge transport in HgTe-based 2D topological insulators
- Interaction effects on thermal transport in quantum wires
- Restricted Wiedemann-Franz law and vanishing thermoelectric power in one-dimensional conductors