Correlated Counting of Single Electrons in a Nanowire Double Quantum Dot

Abstract

We report on correlated real-time detection of individual electrons in an InAs nanowire double quantum dot. Two self-aligned quantum point contacts in an underlying two-dimensional electron gas material serve as highly sensitive charge detectors for the double quantum dot. Tunnel processes of individual electrons and all tunnel rates are determined by simultaneous measurements of the correlated signals of the quantum point contacts.

11 pages, 4 figures; http://stacks.iop.org/1367-2630/11/013005

References in corpus (14)

• Quantum Computation with Quantum Dots
• Electron transport through double quantum dots
• Single-shot read-out of an individual electron spin in a quantum dot
• Electric Dipole Induced Spin Resonance in Quantum Dots
• Double quantum dot with integrated charge sensor based on Ge/Si heterostructure nanowires
• Current measurement by real-time counting of single electrons
• Differential Charge Sensing and Charge Delocalization in a Tunable Double Quantum Dot
• Electric Dipole Spin Resonance for Heavy Holes in Quantum Dots
• Real-time detection of single electron tunneling using a quantum point contact
• Spin-Orbit Mediated Control of Spin Qubits
• Time-Resolved Detection of Individual Electrons in a Quantum Dot
• Top-gate defined double quantum dots in InAs nanowires
• Self-aligned charge read-out for InAs nanowire quantum dots
• Measuring current by counting electrons in a nanowire quantum dot

Cited by in corpus (6)

• Factorial cumulants reveal interactions in counting statistics
• Observation of excited states in a graphene double quantum dot
• Coherent Electron-Phonon Coupling in Tailored Quantum Systems
• Counting statistics in an InAs nanowire quantum dot with a vertically coupled charge detector
• Analysis of low energy response and possible emergent SU(4) Kondo state in a double quantum dot
• Noise-induced spectral shift measured in a Double Quantum Dot