Entanglement of spin-orbit qubits induced by Coulomb interaction

Yinan Fang (), Yusuf Turek, Jianqiang You and Changpu Sun

The European Physical Journal B: Condensed Matter and Complex Systems, 2014, vol. 87, issue 6, 1-7

Abstract: Spin-orbit qubit (SOQ) is the dressed spin by the orbital degree of freedom through a strong spin-orbit coupling (SOC). We show that Coulomb interaction between two electrons in quantum dots located separately in two nanowires can efficiently induce quantum entanglement between two SOQs. But to achieve the highest possible value for two SOQs concurrence, strength of SOC and confining potential for the quantum dots should be tuned to an optimal ratio. The physical mechanism to achieve such quantum entanglement is based on the feasibility of the SOQ responding to the external electric field via an intrinsic electric dipole spin resonance. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2014

Keywords: Mesoscopic and Nanoscale Systems (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1140/epjb/e2014-50172-7

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