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Design and control of spin gates in two quantum dots arrays

Gonzalo Usaj·C. A. Balseiro
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Abstract

We study the spin-spin interaction between quantum dots coupled through a two dimensional electron gas with spin-orbit interaction. We show that the interplay between transverse electron focusing and spin-orbit coupling allows to dynamically change the symmetry of the effective spin-spin Hamiltonian. That is, the interaction can be changed from Ising-like to Heisenberg-like and vice versa. The sign and magnitude of the coupling constant can also be tuned.

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Gonzalo Usaj, C. A. Balseiro. 2005-06-16. Design and control of spin gates in two quantum dots arrays. https://doi.org/10.1063/1.2181275

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