Shot noise in coupled dots and the "fractional charges"

Abstract

We consider the problem of shot noise in resonant tunneling through double quantum dots in the case of interacting particles. Using a many-body quantum mechanical description we evaluate the energy dependent transmission probability, the total average current and the shot noise spectrum. Our results show that the obtained reduction of the noise spectrum, due to Coulomb interaction, can be interpret in terms of non--interacting particles with fractional charge like behavior.

some clarifications added, to appear in Phys. Lett. A

Cited by in corpus (39)

• Coherent and Collective Quantum Optical Effects in Mesoscopic Systems
• Co-tunneling current and shot noise in quantum dots
• Shot Noise Spectrum of Open Dissipative Quantum Two-level Systems
• Shot Noise of a Quantum Shuttle
• Noise enhancement due to quantum coherence in coupled quantum dots
• Counting statistics and decoherence in coupled quantum dots
• Current noise in a vibrating quantum dot array
• Non-equilibrium Entanglement and Noise in Coupled Qubits
• Coherent Transport through an interacting double quantum dot: Beyond sequential tunneling
• Shot noise in transport through "double quantum dots"
• Interference effects in resonant magneto-transport
• Transport Statistics of Interacting Double Dot Systems: Coherent and Non-Markovian Effects
• Calculation of the current noise spectrum in mesoscopic transport: an efficient quantum master equation approach
• Weak coupling approximations in non-Markovian Transport
• Bunching and anti-bunching in electronic transport
• Feedback Control of Quantum Transport
• Full Counting Statistics of Photons Emitted by Double Quantum Dot
• Coherent effects in magneto-transport through Zeeman split levels
• Resonance fluorescence in driven quantum dots: electron and photon correlations
• Electron Bunching in Stacks of Coupled Quantum Dots
• Counting statistics of cotunneling electrons
• Non-equilibrium correlations and entanglement in a semiconductor hybrid circuit-QED system
• Simple models suffice for the single dot quantum shuttle
• Environment-Assisted Quantum Transport through Single-Molecule Junctions
• First-order coherent resonant tunneling through an interacting coupled-quantum-dot interferometer: generic quantum rate equations and current noise
• Shot noise in non-adiabatically driven nanoscale conductors
• Unified single-photon and single-electron counting statistics: from cavity-QED to electron transport
• Quantum transport of double quantum dots coupled to an oscillator in arbitrary strong coupling regime
• Quantum dynamics in nonequilibrium environments
• Noise properties of two single electron transistors coupled by a nanomechanical resonator
• Theory of a double-dot charge detector
• Current and current fluctuations in quantum shuttles
• Charge conservation breaking within generalized master equation description of electronic transport through dissipative double quantum dots
• Spin-dependent current noises in transport through coupled quantum dots
• Shot noise in a quantum dot coupled to non-magnetic leads: Effects of Coulomb interaction
• Renormalized dynamics in charge qubit measurements by a single electron transistor
• Magnetic-flux-controlled giant Fano factor for the coherent tunneling through a parallel double-quantum-dot
• Random backaction in tunneling of single electrons through nanostructures
• Cross correlations in mesoscopic charge detection