Induced quantum dots and wires: electron storage and delivery

Abstract

We show that quantum dots and quantum wires are formed underneath metal electrodes deposited on a planar semiconductor heterostructure containing a quantum well. The confinement is due to the self-focusing mechanism of an electron wave packet interacting with the charge induced on the metal surface. Induced quantum wires guide the transfer of electrons along metal paths and induced quantum dots store the electrons in specific locations of the nanostructure. Induced dots and wires can be useful for devices operating on the electron spin.

References in corpus (7)

• Single-shot read-out of an individual electron spin in a quantum dot
• Driven coherent oscillations of a single electron spin in a quantum dot
• Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
• Can Non-Equilibrium Spin Hall Accumulation be Induced in Ballistic Nanostructures?
• Measurement efficiency and n-shot read out of spin qubits
• Non-destructive measurement of electron spins in a quantum dot
• Exchange-controlled single-electron-spin rotations in quantum dots

Cited by in corpus (4)

• Spin rotations induced by electron running on closed trajectories in gated semiconductor nanodevices
• Magnetic-field asymmetry of electron wave packet transmission in bent channels capacitively coupled to a metal gate
• Resonant optical electron transfer in one-dimensional multiwell structures
• Gated combo nanodevice for sequential operations on single electron spin