Spin fractionalization of an even number of electrons in a Quantum dot

Abstract

An experiment is proposed of non perturbative tunneling in a Quantum dot connected to leads in a pillar configuration, which would shed light on the physics of the mesoscopic Kondo problem. We propose for the first time that what is coupled to the leads in the case of even number of electrons on the dot is not just the electrons on the QD, with their own spins, but the very total spin of the dot macroscopic state itself, that displays features of the Kondo physics, that leads to fractionalization of the spin in the dot, that is to a "spinon box".

4 pages revtex file, 1 figure

References in corpus (1)

• Sequential magnetotunneling in a vertical Quantum Dot tuned at the crossing to higher spin states

Cited by in corpus (25)

• Photon-assisted transport in semiconductor nanostructures
• Kondo effect in an integer-spin quantum dot
• Cotunneling Spectroscopy in Few-Electron Quantum Dots
• Thermoelectric effects in Kondo correlated quantum dots
• RKKY and magnetic field interactions in coupled Kondo quantum dots
• Kondo tunneling through real and artificial molecules
• Kondo effect in coupled quantum dots: a Non-crossing approximation study
• Mean Field Theory of the Kondo Effect in Quantum Dots with an Even Number of Electrons
• Double quantum dot as a spin rotator
• Low temperature transport in AC-driven Quantum Dots in the Kondo regime
• Many-Body Approch to Spin-Dependent Transport in Quantum Dot Systems
• Tunneling through triple quantum dots with mirror symmetry
• Non-equilibrium Kondo effect in asymmetrically coupled quantum dot
• Theoretical study of electronic transport through a small quantum dot with a magnetic impurity
• Kondo ground state in a quantum dot with an even number of electrons
• Flux-quantum-modulated Kondo conductance in a multielectron quantum dot
• Kondo effect and singlet-triplet splitting in coupled quantum dots in a magnetic field
• Kondo effect in multielectron quantum dots at high magnetic fields
• Josephson versus Kondo coupling in a quantum dot connected to two superconductors
• Possibility of two-channel orbital Kondo "spin" 1/2 conductance in a quantum dot
• Linear Kondo conductance in a quantum dot
• Suppression of Kondo-assisted co-tunneling in a spin-1 quantum dot with Spin-Orbit interaction
• Magnetic field induced two-channel Kondo effect in multiple quantum dots
• Hamiltonian theory of the strongly-coupled limit of the Kondo problem in the overscreened case
• Kondo tunneling tgrough a biased quantum dot