Fast and robust spin manipulation in a quantum dot by electric fields

Yue Ban; Xi Chen; E. Ya Sherman; J. G. Muga

doi:10.1103/PhysRevLett.109.206602

Fast and robust spin manipulation in a quantum dot by electric fields

Yue Ban^*
, Xi Chen
, E. Ya Sherman
, J. G. Muga

^*Corresponding author for this work

Shanghai University

Research output: Contribution to journal › Article › peer-review

73 Citations (Scopus)

Abstract

We apply an invariant-based inverse engineering method to control, by time-dependent electric fields, the spin dynamics in a quantum dot with spin-orbit coupling in a weak magnetic field. The designed electric fields provide a shortcut to adiabatic processes that flip the spin rapidly, thus avoiding decoherence effects. This approach, being robust with respect to the device-dependent noise, can open new possibilities for spin-based quantum information processing.

Original language	English
Article number	206602
Journal	Physical Review Letters
Volume	109
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.109.206602
Publication status	Published - 13 Nov 2012
Externally published	Yes

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10.1103/PhysRevLett.109.206602

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title = "Fast and robust spin manipulation in a quantum dot by electric fields",

abstract = "We apply an invariant-based inverse engineering method to control, by time-dependent electric fields, the spin dynamics in a quantum dot with spin-orbit coupling in a weak magnetic field. The designed electric fields provide a shortcut to adiabatic processes that flip the spin rapidly, thus avoiding decoherence effects. This approach, being robust with respect to the device-dependent noise, can open new possibilities for spin-based quantum information processing.",

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N2 - We apply an invariant-based inverse engineering method to control, by time-dependent electric fields, the spin dynamics in a quantum dot with spin-orbit coupling in a weak magnetic field. The designed electric fields provide a shortcut to adiabatic processes that flip the spin rapidly, thus avoiding decoherence effects. This approach, being robust with respect to the device-dependent noise, can open new possibilities for spin-based quantum information processing.

AB - We apply an invariant-based inverse engineering method to control, by time-dependent electric fields, the spin dynamics in a quantum dot with spin-orbit coupling in a weak magnetic field. The designed electric fields provide a shortcut to adiabatic processes that flip the spin rapidly, thus avoiding decoherence effects. This approach, being robust with respect to the device-dependent noise, can open new possibilities for spin-based quantum information processing.

UR - https://www.scopus.com/pages/publications/84869020512

U2 - 10.1103/PhysRevLett.109.206602

DO - 10.1103/PhysRevLett.109.206602

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JO - Physical Review Letters

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Fast and robust spin manipulation in a quantum dot by electric fields

Abstract

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