2021
DOI: 10.48550/arxiv.2107.12622
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All-electrical control of hole singlet-triplet spin qubits at low leakage points

Philipp M. Mutter,
Guido Burkard

Abstract: We study the effect of the spin-orbit interaction on heavy holes confined in a double quantum dot in the presence of a magnetic field of arbitrary direction. Rich physics arise as the two hole states of different spin are not only coupled by the spin-orbit interaction but additionally by the effect of site-dependent anisotropic g tensors. It is demonstrated that these effects may counteract in such a way as to cancel the coupling at certain detunings and tilting angles of the magnetic field. This feature may b… Show more

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