SU(4) Kondo Effect in Carbon Nanotubes

Abstract

We investigate theoretically the non-equilibrium transport properties of carbon nanotube quantum dots. Owing to the two-dimensional band structure of graphene, a double orbital degeneracy plays the role of a pseudo-spin, which is entangled with the spin. Quantum fluctuations between these four degrees of freedom result in an SU(4) Kondo effect at low temperatures. This exotic Kondo effect manifests as a four-peak splitting in the non-linear conductance when an axial magnetic field is applied.

5 pages, 4 figures

References in corpus (14)

• Luttinger Liquid Behavior in Carbon Nanotubes
• Low Temperature Transport through a Quantum Dot: The Anderson Model out of Equilibrium
• Kondo physics in carbon nanotubes
• The Anderson Model out of Equilibrium: Non-Crossing-Approximation Approach to Transport through a Quantum Dot
• Orbital Kondo effect in carbon nanotubes
• A Quantum Dot in the Kondo Regime Coupled to Superconductors
• Measuring electron orbital magnetic moments in carbon nanotubes
• SU(4) Fermi Liquid State and Spin Filtering in a Double Quantum Dot System
• Multi-wall carbon nanotubes as quantum dots
• Non-equilibrium dynamics of the Anderson impurity model
• Probing spin and orbital Kondo effects with a mesoscopic interferometer
• Interference in interacting quantum dots with spin
• Kondo effect and spin filtering in triangular artificial atoms
• Smearing of charge fluctuations in a grain by spin-flip assisted tunneling

Cited by in corpus (110)

• Quantum transport in carbon nanotubes
• Orbital Kondo effect in carbon nanotubes
• Advances and challenges in single-molecule electron transport
• Josephson and Andreev transport through quantum dots
• Observation of the SU(4) Kondo state in a double quantum dot
• SU(4) and SU(2) Kondo Effects in Carbon Nanotube Quantum Dots
• Evolution of SU(4) Transport Regimes in Carbon Nanotube Quantum Dots
• Magnetically Tunable Kondo - Aharonov-Bohm Effect in a Triangular Quantum Dot
• Universal Quantum Computing with Spin and Valley
• Kondo Effects in Carbon Nanotubes: From SU(4) to SU(2) symmetry
• Emulating heavy fermions in twisted trilayer graphene
• Theory of non-equilibrium transport in the SU(N) Kondo regime
• Zero-bias conductance in carbon nanotube quantum dots
• Unified description of correlations in double quantum dots
• Universal transport signatures in two-electron molecular quantum dots: gate-tunable Hund's rule, underscreened Kondo effect and quantum phase transitions
• Magnetic Field Probing of an SU(4) Kondo Resonance in a Single Atom Transistor
• Shot Noise in Mesoscopic Systems: from Single Particles to Quantum Liquids
• 0-$\pi$ quantum transition in a carbon nanotube Josephson junction: universal phase dependence and orbital degeneracy
• Kondo effect in double quantum dots with inter-dot repulsion
• Kondo effect in carbon nanotube quantum dots with spin-orbit coupling
• Magnetoresistance of a quantum dot with spin-active interfaces
• Broken SU(4) symmetry in a Kondo-correlated carbon nanotube
• Current noise through a Kondo quantum dot in a SU(N) Fermi liquid state
• Many-Body Physics and Quantum Chaos
• Kondo physics and orbital degeneracy interact to boost thermoelectrics on the nanoscale
• Kondo conductance across the smallest spin 1/2 radical molecule
• Interplay between Kondo physics and spin-orbit coupling in carbon nanotube quantum dots
• Transport through a quantum dot with SU(4) Kondo entanglement
• Interplay of Kondo effect and strong spin-orbit coupling in multi-hole ultraclean carbon nanotubes
• Quantum Fluctuations along Symmetry Crossover in Kondo-correlated Quantum Dot
• Shot Noise in SU(N) Quantum Dot Kondo Effects
• New Numerical Results Indicate a Half-Filling SU(4) Kondo State in Carbon Nanotubes
• Spin polarized current and shot noise in carbon nanotube quantum dot in the Kondo regime
• The Kondo crossover in shot noise of a single quantum dot with orbital degeneracy
• Spin-orbital Kondo effect in a parallel double quantum dot
• Fabry-Perot interference, Kondo effect and Coulomb blockade in carbon nanotubes
• Conductance via Multi orbital Kondo Effect in Single Quantum Dot
• Transport in Carbon Nanotubes: 2LSU(2) regime reveals subtle competition between Kondo and Intermediate Valence states
• SU(3) Kondo effect in spinless triple quantum dots
• Electron properties of carbon nanotubes in a periodic potential
• Realization of SU(N) Kondo effect in strong magnetic field
• Josephson current in carbon nanotubes with spin-orbit interaction
• Sensing Kondo correlations in a suspended carbon nanotube mechanical resonator with spin-orbit coupling
• Minimal realization of the Orbital Kondo effect in a Quantum Dot with two Leads
• Phase diagram and dynamics of the SU($\mathbf{N}$) symmetric Kondo lattice model
• Spontaneous Valley Spirals in Magnetically Encapsulated Twisted Bilayer Graphene
• Josephson effect for SU(4) carbon nanotube quantum dots
• SO(5) non-Fermi liquid in a Coulomb box device
• The Kondo Temperature of SU(4) Symmetric Quantum Dots
• Valley Kondo Effect in Silicon Quantum Dots
• Conditions for observing emergent SU(4) symmetry in a double quantum dot
• Blocking transport resonances via Kondo entanglement in quantum dots
• Two-channel Kondo physics in tunnel-coupled double quantum dots
• Relation between width of the zero-bias anomaly and Kondo temperaure in transport measurements through correlated quantum dots: Effect of asymmetric coupling to the leads
• Restoring the SU(4) Kondo regime in a double quantum dot system
• Nonlinear Seebeck effect of SU($N$) Kondo impurity
• Spin-orbital and spin Kondo effects in parallel coupled quantum dots
• Kondo Physics and Exact Solvability of Double Dots Systems
• Field-induced SU(4) to SU(2) Kondo crossover in a half-filling nanotube dot: spectral and finite-temperature properties
• Kondo effect in a carbon nanotube with spin-orbit interaction and valley mixing: A DM-NRG study
• Abrupt disappearance and reemergence of the SU(2) and SU(4) Kondo effects due to population inversion
• Transport through a quantum dot subject to spin and charge bias: Kondo regime
• Admittance of the SU(2) and SU(4) Anderson quantum RC circuits
• A local moment approach to the degenerate Anderson impurity model
• Kramers polarization in strongly correlated carbon nanotube quantum dots
• Manipulability of the Kondo effect in a T-shaped triple-quantum-dot structure
• Field-Enhanced Kondo Correlations in a Half-Filling Nanotube Dot: Evolution of an SU(N) Fermi-Liquid Fixed Point
• Orbital caloritronic transport in strongly interacting quantum dots
• Entanglement and transport through correlated quantum dot
• Topological symplectic Kondo effect
• Two-stage three-channel Kondo physics for an FePc molecule on the Au(111) surface
• 1/(N-1) expansion for a finite U Anderson model away from half-filling
• Ground State and Excitations of Quantum Dots with "Magnetic Impurities"
• Multi-orbital simplified parquet equations for strongly correlated electrons
• Kondo behavior and conductance through $3d$ impurities in gold chains doped with oxygen
• Nonlinear Fermi-liquid transport through a quantum dot in asymmetric tunnel junctions
• Flavor fluctuations in 3-level quantum dots: Generic SU(3)-Kondo fixed point in equilibrium and non-Kondo fixed points in nonequilibrium
• Transport and Strong-Correlation Phenomena in Carbon Nanotube Quantum Dots in a Magnetic Field
• Intra- and inter-shell Kondo effects in carbon nanotube quantum dots
• Compensation effect in carbon nanotube quantum dots coupled to polarized electrodes in the presence of spin-orbit coupling
• Three-orbital Kondo effect in single quantum dot system with plural electrons
• Thermal Symmetry Crossover and Universal Behaviors in Carbon Nanotube Dots
• Decoherence of an entangled state of a strongly-correlated double quantum dot structure through tunneling processes
• SU(4) Kondo entanglement in double quantum dot devices
• Tunable correlation effects of magnetic impurities by the cubic Rashba spin-orbit couplings
• Effects of strong electron interactions and resonance scattering on power output of nano-devices
• Transport Properties of Multiple Quantum Dots Arranged in Parallel: Results from the Bethe Ansatz
• Role of bias and tunneling asymmetries in nonlinear Fermi-liquid transport through an SU($N$) quantum dot
• Non-equilibrium transport theory of the singlet-triplet transition: perturbative approach
• Magnetic field induced mixed-level Kondo effect in two-level systems
• Kondo Phase Transitions of Magnetic Impurities in Carbon Nanotubes
• Nonequilibrium transport through parallel double quantum dots in the Kondo regime
• Universal conductance enhancement and reduction of the two-orbital Kondo effect
• Thermoelectric transport and current noise through a multilevel Anderson impurity: Three-body Fermi-liquid corrections in quantum dots and magnetic alloys
• Spin-orbital Kondo decoherence by environmental effects in capacitively coupled quantum dot devices
• Conductance of Quantum Impurity Models from Quantum Monte Carlo
• Multi-Dirac and Weyl physics in heavy-fermion systems
• Electron-phonon interaction and electronic correlations in transport through electrostatically and tunnel coupled quantum dots
• Entanglement and the Kondo effect in double quantum dots
• Two-orbital Kondo effect in quantum dot coupled to ferromagnetic leads
• Unhiding a concealed resonance by multiple Kondo transitions in a quantum dot
• Three-body Fermi liquid corrections for an infinite-$U$ SU($N$) Anderson impurity model
• Thermopower of Kondo Effect in Single Quantum Dot Systems with Orbital at Finite Temperatures
• Gate-defined Kondo lattices with valley-helical quantum dot arrays
• Transmission phase evolution in fully screened and overscreened Kondo impurities
• Fractional shot noise of an SU(N) Kondo system
• Distinct effect of Kondo physics on crystal field splitting in electron and spin spectroscopies
• Probing Kondo spin fluctuations with scanning tunneling microscopy and electron spin resonance
• Double single-channel Kondo coupling in graphene with Fe molecules
• Changes of Kondo effect in the junction with DIII-class topological and $s$-wave superconductors