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arXiv · 1711.02134

Exact spin-orbit qubit manipulation

A. Ramsak·T. Cadez·A. Kregar·L. Ulcakar
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Abstract

We consider exactly solvable manipulation of spin-qubits confined in a moving harmonic trap and in the presence of the time dependent Rashba interaction. Non-adiabatic Anandan phase for cyclic time evolution is compared to the Wilczek-Zee adiabatic counterpart. It is shown that the ratio of these two phases can for a chosen system be any real number. Next we demonstrate the possibility of arbitrary qubit transformation in a ring with spin-orbit interaction. Finally, we present an example of exact analysis of spin-orbit dynamics influenced by the Ornstein-Uhlenbeck coloured noise.

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A. Ramsak, T. Cadez, A. Kregar, L. Ulcakar. 2017-11-06. Exact spin-orbit qubit manipulation. https://doi.org/10.1140/epjst%2Fe2018-00094-2

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