Probing the microscopic structure of bound states in quantum point contacts

Abstract

Using an approach that allows us to probe the electronic structure of strongly pinched-off quantum point contacts (QPCs), we provide evidence for the formation of self-consistently realized bound states (BSs) in these structures. Our approach exploits the resonant interaction between closely-coupled QPCs, and demonstrates that the BSs may give rise to a robust confinement of single spins, which show clear Zeeman splitting in a magnetic field.

References in corpus (2)

• Magnetic impurity formation in quantum point contacts
• Zeeman splitting in ballistic hole quantum wires

Cited by in corpus (6)

• Detector Backaction on the Self-Consistent Bound State in Quantum Point Contacts
• Conductance Anomaly and Fano Factor Reduction in Quantum Point Contacts
• Fractional quantization of ballistic conductance in 1D hole systems
• Charge fluctuations and feedback effect in shot noise in a Y-terminal system
• Spin polarization in modulation-doped GaAs quantum wires
• Entanglement and transport anomalies in nanowires