Enhanced Two-Channel Kondo Physics in a Quantum Box Device
arXiv:cond-mat/0602218 · doi:10.1209/0295-5075/79/47004
Abstract
We propose a design for a one-dimensional quantum box device where the charge fluctuations are described by an anisotropic two-channel Kondo model. The device consists of a quantum box in the Coulomb blockade regime, weakly coupled to a quantum wire by a single-mode point contact. The electron correlations in the wire produce strong back scattering at the contact, significantly increasing the Kondo temperature as compared to the case of non-interacting electrons. By employing boundary conformal field theory techniques we show that the differential capacitance of the box exhibits manifest two-channel Kondo scaling with temperature and gate voltage, uncontaminated by the one-dimensional electron correlations. We discuss the prospect to experimentally access the Kondo regime with this type of device.
EPL style, 5 pages, 1 figure, final published version
References in corpus (20)
- Observation of the two-channel Kondo effect
- Coulomb blockade at almost perfect transmission
- Quantum phase transition in a two-channel-Kondo quantum dot device
- Observation of Quantum Fluctuations of Charge on a Quantum Dot
- Tomonaga-Luttinger parameters for quantum wires
- Capacitance of a quantum dot from the channel-anisotropic two-channel Kondo model
- Smearing of charge fluctuations in a grain by spin-flip assisted tunneling
- The Coulomb Blockade in Quantum Boxes
- Maximized Orbital and Spin Kondo effects in a single-electron transistor
- Climbing the Entropy Barrier: Driving the Single- towards the Multichannel Kondo Effect by a Weak Coulomb Blockade of the Leads
- Coulomb blockade and Non-Fermi-liquid behavior in quantum dots
- Enhancement of the Two-channel Kondo Effect in Single-Electron boxes
- On the Stability and Structural Dynamics of Metal Nanowires
- Dissipative dynamics of an extended magnetic nanostructure: Spin necklace in a metallic environment
- Prediction of the capacitance lineshape in two-channel quantum dots
- Smearing of Coulomb Blockade by Resonant Tunneling
- Multichannel Kondo Effect in an Interacting Electron System: Exact Results for the Low-Temperature Thermodynamics
- Measuring Luttinger Liquid Correlations from Charge Fluctuations in a Nanoscale Structure
- Kondo effect in a Luttinger liquid: nonuniversality of the Wilson ratio
- Kondo effect in crossed Luttinger liquids
Cited by in corpus (6)
- Universal low-temperature crossover in two-channel Kondo models
- Universality and scaling in a charge two-channel Kondo device
- Quantum Wire Hybridized with a Single-Level Impurity
- Capacitance of a resonant level coupled to Luttinger liquids
- Charge-Kondo Effect in Mesoscopic Superconductors Coupled to Normal Metals
- Bosonization approach to the mixed-valence two-channel Kondo problem