Tuning Energy Relaxation along Quantum Hall Channels
arXiv:1007.0974 · doi:10.1103/PhysRevLett.105.226804
Abstract
The chiral edge channels in the quantum Hall regime are considered ideal ballistic quantum channels, and have quantum information processing potentialities. Here, we demonstrate experimentally, at filling factor 2, the efficient tuning of the energy relaxation that limits quantum coherence and permits the return toward equilibrium. Energy relaxation along an edge channel is controllably enhanced by increasing its transmission toward a floating ohmic contact, in quantitative agreement with predictions. Moreover, by forming a closed inner edge channel loop, we freeze energy exchanges in the outer channel. This result also elucidates the inelastic mechanisms at work at filling factor 2, informing us in particular that those within the outer edge channel are negligible.
8 pages including supplementary material
References in corpus (21)
- An Electronic Mach-Zehnder Interferometer
- Sharp and Smooth Boundaries of Quantum Hall Liquids
- Two-particle Aharonov-Bohm effect and Entanglement in the electronic Hanbury Brown Twiss setup
- Direct measurement of the coherence length of edge states in the Integer Quantum Hall Regime
- Non-Equilibrium Edge Channel Spectroscopy in the Integer Quantum Hall Regime
- Energy Relaxation in the Integer Quantum Hall Regime
- Quantum Dots in Strong Magnetic Fields: Stability Criteria for the Maximum Density Droplet
- Novel Edge Excitations of Two-dimensional Electron Liquid in a Magnetic Field
- Decoherence and single electron charging in an electronic Mach-Zehnder interferometer
- Shot noise of a mesoscopic two-particle collider
- Observation of Chiral Heat Transport in the Quantum Hall Regime
- Controlled Dephasing of Electrons by Non-Gaussian Shot Noise
- Unexpected finite-bias visibility dependence in an electronic Mach Zehnder interferometer
- Plasmon scattering approach to energy exchange and high frequency noise in nu=2 quantum Hall edge channels
- Noise dephasing in the edge states of the Integer Quantum Hall regime
- Quantum Computation with Ballistic Electrons
- Tuning decoherence with a voltage probe
- Mesoscopic one-way channels for quantum state transfer via the Quantum Hall Effect
- Interaction induced edge channel equilibration
- Positive Cross Correlations in a Normal-Conducting Fermionic Beam Splitter
- Optical absorption to probe the quantum Hall ferromagnet at filling factor
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- Single electron quantum tomography in quantum Hall edge channels
- Electron quantum optics in quantum Hall edge channels
- Real time decoherence of Landau and Levitov quasi-particles in quantum Hall edge channels
- Nanoscale imaging of equilibrium quantum Hall edge currents and of the magnetic monopole response in graphene
- Waveform measurement of charge- and spin-density wave packets in a Tomonaga-Luttinger liquid
- Imaging work and dissipation in the quantum Hall state in graphene
- Wigner function approach to single electron coherence in quantum Hall edge channels
- Fractionalization of minimal excitations in integer quantum Hall edge channels
- Energy relaxation at quantum Hall edge
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- Vanishing thermal equilibration for hole-conjugate fractional quantum Hall states in graphene
- Quantum coherence engineering in the integer quantum Hall regime
- Equilibration of quantum Hall edge states by an Ohmic contact
- Equilibration of integer quantum Hall edge states
- Strong back-action of a linear circuit on a single electronic quantum channel
- Relaxation in driven integer quantum Hall edge states
- Shot noise generated by graphene p-n junctions in the quantum Hall effect regime
- Macroscopic electron quantum coherence in a solid-state circuit
- Relaxation and revival of quasiparticles injected in an interacting quantum Hall liquid
- Taming electronic decoherence in 1D chiral ballistic quantum conductors
- Phenomenological theory of heat transport in the fractional quantum Hall effect
- Thermalization of nonequilibrium electrons in quantum wires
- Quantifying nonequlibrium thermodynamic operations in a multiterminal mesoscopic system
- Relaxation of an electron wave packet at the quantum Hall edge at filling factor 2
- Fractionalization noise in edge channels of integer quantum Hall states
- Dephasing of an Electronic Two-Path Interferometer
- Optimal thermoelectricity with quantum spin-Hall edge states
- Two-particle interferometry in quantum Hall edge channels
- Two-electron state from the Floquet scattering matrix perspective
- Energy relaxation in edge modes in the quantum Hall effect
- Transferring the quantum state of electrons across a Fermi sea with Coulomb interaction
- Spectral distribution and wavefunction of electrons emitted from a single particle source in the quantum Hall regime
- Interaction Quench in Nonequilibrium Luttinger Liquids
- Enhanced thermoelectric response in the fractional quantum Hall effect
- Helical spin thermoelectrics controlled by a side-coupled magnetic quantum dot in the quantum spin Hall state
- Trapping and counting ballistic non-equilibrium electrons
- Shot noise thermometry of the quantum Hall edge states
- Hong-Ou-Mandel heat noise in the quantum Hall regime
- Nonlinear chiral refrigerators
- Emergent Energy Dissipation in Quantum Limit
- Analytically solvable model of an electronic Mach-Zehnder interferometer
- Heat transport through quantum Hall edge states: Tunneling versus capacitive coupling to reservoirs
- Non-equilibrium effects on charge and energy partitioning after an interaction quench
- Geometric energy transport and refrigeration with driven quantum dots
- Two-electron coherence and its measurement in electron quantum optics
- Probing interactions via non-equilibrium momentum distribution and noise in integer quantum Hall systems at
- Statistical theory of relaxation of high energy electrons in quantum Hall edge states
- Composite two-particle sources
- Interaction effects in a multi-channel Fabry-Pérot interferometer in the Aharonov-Bohm regime
- Universal non-equilibrium states at the fractional quantum Hall edge
- Current correlations of Cooper-pair tunneling into a quantum Hall system
- Many-particle correlations in non-equilibrium Luttinger liquid
- Radio-frequency reflectometry in bilayer graphene devices utilizing micro graphite back-gates
- Supercurrents in chiral channels originate from upstream information transfer: a theoretical prediction
- Relaxation and edge reconstruction in integer quantum Hall systems
- Observation of finite excess noise in the voltage-biased quantum Hall regime as a precursor for breakdown
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- Dephasing in single-electron generation due to environmental noise probed by Hong Ou Mandel interferometry
- Equilibration in a chiral Luttinger liquid
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- Interaction-induced charge transfer in a mesoscopic electron spectrometer
- Electronic wave-packets in integer quantum Hall edge channels: relaxation and dissipative effects
- Long-range Fermi sea correlations as the resource for encoding quantum information
- Measurement of energy relaxation in quantum Hall edge states utilizing quantum point contacts
- Measuring the Luttinger liquid parameter with shot noise
- Interplay of filling fraction and coherence in symmetry broken graphene p-n junction
- Pair Scattering of Electrons in Edge Channels of Opposite Chiralities in the Presence of a Disorder Potential
- Decoherence of high-energy electrons in weakly disordered quantum Hall edge states
- The threshold effects in one-dimensional strongly-interacting systems out of equilibrium
- Charge-conserving equilibration of quantum Hall edge states
- Optimizing energy conversion with nonthermal resources in steady-state quantum devices
- Long lifetimes of ultra-hot particles in interacting Fermi systems
- Coupling between Quantum Hall Edge Channels on Opposite Sides of a Hall Bar
- Ultrafast energy relaxation of quantum dot-generated 2D hot electrons
- Nonequilibrium electron distribution function in a voltage-biased nanowire: A nonequilibrium Green's function approach
- Duality and bosonization in Schwinger-Keldysh formulation
- Nonequilibrium distribution functions in electron transport: Decoherence, energy redistribution and dissipation
- On-Demand and Tunable Andreev-Conversion of Single-Electron Charge Pulses
- Floquet-Nambu theory of electron quantum optics with superconductors
- Dissipation and quantum noise in chiral circuitry
- Elastic precession of electronic spin states in interacting integer quantum Hall edge channels