Spin Orbit Mediated Manipulation of Heavy Hole Spin Qubit in Gated Semiconductor Nanodevices

Abstract

A novel spintronic nanodevice is proposed that is capable to manipulate the single heavy hole spin state in a coherent manner. It can act as a single quantum logic gate. The heavy hole spin transformations are realized by transporting the hole around closed loops defined by metal gates deposited on top of the nanodevice. The device exploits Dresselhaus spin orbit interaction which translates the spatial motion of the hole into a rotation of the spin. The proposed quantum gate operates on sub nanosecond time scales and requires only the application of a weak static voltage which allows for addressing heavy hole spin qubit individually. Our results are supported by quantum mechanical time dependent calculations within the four band Luttinger Kohn model.

References in corpus (14)

• 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
• Coherent control of a single electron spin with electric fields
• Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot
• Spin relaxation and decoherence of holes in quantum dots
• Observation of extremely slow hole spin relaxation in self-assembled quantum dots
• Electric Dipole Spin Resonance for Heavy Holes in Quantum Dots
• Hole - Nuclear Spin Interaction in Quantum Dots
• Spin-Orbit Mediated Control of Spin Qubits
• Direct measurement of the hole-nuclear spin interaction in single quantum dots
• Non-destructive measurement of electron spins in a quantum dot
• Spin rotations induced by electron running on closed trajectories in gated semiconductor nanodevices
• Induced quantum dots and wires: electron storage and delivery
• All-electric qubit control in heavy hole quantum dots via non-Abelian geometric phases

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