Spin-selective electron transfer in quantum dot array

Abstract

We propose a spin-selective coherent electron transfer in a silicon-quantum-dot array. Oscillating magnetic fields and temporally controlled gate voltages are utilised to separate the electron wave function into different quantum dots depending on the spin state. We introduce non-adiabatic and adiabatic protocols which offer fast electron transfer and the robustness against the error in the control-field pulse area, respectively. We also study a shortcut-to-adiabaticity protocol which compromises these two protocols. We show that this scheme can be extended to multi-electron systems straightforwardly and used for non-local manipulations of the electrons.

References in corpus (15)

• Surface codes: Towards practical large-scale quantum computation
• Single-shot read-out of an individual electron spin in a quantum dot
• An addressable quantum dot qubit with fault-tolerant control fidelity
• Shortcut to adiabatic passage in two and three level atoms
• Assisted finite-rate adiabatic passage across a quantum critical point: Exact solution for the quantum Ising model
• Coherent electronic transfer in quantum dot systems using adiabatic passage
• Accelerated quantum control using superadiabatic dynamics in a solid-state lambda system
• Fast population transfer engineering of three-level systems
• A fault-tolerant addressable spin qubit in a natural silicon quantum dot
• Shortcut to adiabaticity for an interacting Bose-Einstein condensate
• Mean-field dynamics of a Bose-Einstein condensate in a time-dependent triple-well trap: Nonlinear eigenstates, Landau-Zener models and STIRAP
• An accurate single-electron pump based on a highly tunable silicon quantum dot
• High-fidelity rapid ground-state loading of an ultracold gas into an optical lattice
• Coherent electron-spin-resonance manipulation of three individual spins in a triple quantum dot
• Quantum non-demolition measurements of single donor spins in semiconductors

Cited by in corpus (5)

• The experimental realization of high-fidelity `shortcut-to-adiabaticity' quantum gates in a superconducting Xmon qubit
• Majorana representation of adiabatic and superadiabatic processes in three-level systems
• Spin-orbit correlation and spatial distributions for spin-0 hadrons
• Quantum Shortcut to Adiabaticity for State Preparation in a Finite-Sized Jaynes-Cummings Lattice
• Efficient electron transfer in quantum dot chains controlled by a cubic detuning profile via shortcuts to adiabaticity