Tunable spin/charge Kondo effect at a double superconducting island connected to two spinless quantum wires

Abstract

We propose that a pertinently engineered double superconducting island connected to two spinless one-dimensional conducting leads can work as a tunable (iso)spin Kondo and charge Kondo system, with the lead index regarded as an effective isospin degree of freedom. We evidence how, by tuning a single gate voltage applied to the island, it is possible to make the system switch from the (iso)spin Kondo to the charge-Kondo phase, passing across an intermediate phase, in which the Kondo impurity is effectively irrelevant for the low-temperature behavior of the system. Eventually, we evidence how to probe the various phases by measuring the ac conductance tensor of our system, by emphasizing the features that should allow to identify the onset of the so far quite elusive "charge-2" charge-Kondo effect.

arXiv comment29 pages, 6 .eps figures, published version

References in corpus (66)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Helical liquids and Majorana bound states in quantum wires
• Kondo Physics in a Single Electron Transistor
• Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
• A generic new platform for topological quantum computation using semiconductor heterostructures
• A Tunable Kondo Effect in Quantum Dots
• The numerical renormalization group method for quantum impurity systems
• Majorana fermions in a tunable semiconductor device
• Observation of the fractional ac Josephson effect: the signature of Majorana particles
• The Helical Liquid and the Edge of Quantum Spin Hall Systems
• Revival of the Kondo effect
• Splitting of a Cooper pair by a pair of Majorana bound states
• Electron Teleportation via Majorana Bound States in a Mesoscopic Superconductor
• The role of magnetic anisotropy in the Kondo effect
• Coulomb blockade at almost perfect transmission
• Kondo effect in a magnetic field and the magnetoresistivity of Kondo alloys
• Topological Kondo effect with Majorana fermions
• Kondo Effect and Josephson Current through a Quantum Dot between Two Superconductors
• Two-channel Kondo effect and renormalization flow with macroscopic quantum charge states
• Many Body Effects on the Transport Properties of Single-Molecule Devices
• Conductance of a helical edge liquid coupled to a magnetic impurity
• Theory of strong inelastic co-tunneling
• Multi-Terminal Coulomb-Majorana Junction
• Majorana-Klein hybridization in topological superconductor junctions
• Coulomb blockade of Majorana fermion induced transport
• The Kondo screening cloud: what can we learn from perturbation theory?
• Superconductivity in charge Kondo systems
• Inelastic Microwave Photon Scattering off a Quantum Impurity in a Josephson-Junction Array
• Multi-channel Kondo impurity dynamics in a Majorana device
• The Screening Cloud in the k-Channel Kondo Model: Perturbative and Large-k Results
• Mechanism for large thermoelectric power in negative-U molecular quantum dots
• Tunneling through an Anderson impurity between superconductors
• Realization of 2-channel Kondo effect in a junction of three quantum Ising chains
• Quantum spins on star graphs and the Kondo model
• Topological Superconductor-Luttinger Liquid Junctions
• Conductance fingerprint of Majorana fermions in the topological Kondo effect
• Quantum phase transition of Ising-coupled Kondo impurities
• Y-junction of superconducting Josephson chains
• Magnetic moments in a helical edge can make weak correlations seem strong
• Transport properties of the Coulomb-Majorana junction
• Bethe ansatz solution of the topological Kondo model
• Kondo Effect in Spin Chains
• Maximized Orbital and Spin Kondo effects in a single-electron transistor
• Tunneling spectroscopy of Majorana-Kondo devices
• Non-Fermi liquid manifold in a Majorana device
• Current transport properties and phase diagram of a Kitaev chain with long-range pairing
• From four- to two-channel Kondo effect in junctions of XY spin chains
• Kondo effect in XXZ spin chains
• Screening Clouds and Majorana Fermions
• Enhanced Coherence of a Quantum Doublet Coupled to Tomonaga-Luttinger Liquid Leads
• Spin-charge separation and simultaneous spin and charge Kondo effect
• XXZ spin-1/2 representation of a finite-U Bose-Hubbard chain at half-integer filling
• Non-Fermi liquid behavior in Kondo models
• Realization of a two-channel Kondo model with Josephson junction networks
• Correlations of spin currents through a quantum dot induced by the Kondo effect
• A possible realization of multi-channel Kondo model in a system of magnetic chains
• Charge-Kondo Effect in Mesoscopic Superconductors Coupled to Normal Metals
• From Kondo effect to weak-link regime in quantum spin-1/2 spin chains
• Theory of a.c. spin current noise and spin conductance through a quantum dot in the Kondo regime I: The equilibrium case
• Josephson versus Kondo coupling in a quantum dot connected to two superconductors
• Kondo Length in Bosonic Lattices
• Current Characteristics of the Single-Electron Transistor at the Degeneracy Point
• Charge-Kondo effect mediated by repulsive interactions
• Towards A Possible Charge-Kondo effect in Optical Lattices

Cited by in corpus (13)

• Lindblad master equation approach to the topological phase transition in the disordered Su-Schrieffer-Heeger model
• Lindblad equation approach to the optimal working point in nonequilibrium stationary states of an interacting electronic one-dimensional system: Application to the spinless Hubbard chain in the clean and in the weakly disordered limit
• The fate of high winding number topological phases in the disordered extended Su-Schrieffer-Heeger model
• Lindblad master equation approach to the dissipative quench dynamics of planar superconductors
• Tunable Kondo screening length at a Y-junction of three inhomogenous spin chains
• Traffic models and traffic-jam transition in quantum ($N$+1)-level systems
• Understanding Traffic Jams Using Lindblad Superoperators
• Out of equilibrium charge transport in molecular electronic devices
• Wetting critical behavior in the quantum Ising model within the framework of Lindblad dissipative dynamics
• Uniaxial modulation and the Berezinskii-Kosterlitz-Thouless transition
• Quantum phase transitions in superconductor--quantum-dot--superconductor Josephson structures with attractive intradot interaction
• Matrix product state simulations of quantum quenches and transport in Coulomb blockaded superconducting devices
• Spin and thermal current scaling at a $Y$-junction of XX spin chains