Qubit gates with simultaneous transport in double quantum dots
A single electron spin in a double quantum dot in a magnetic field is considered in terms of a four-level system. By describing the electron motion between the potential minima via spin-conserving tunneling and spin flip caused by a spin-orbit coupling, we inversely engineer faster-than-adiabatic st...
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Published in | New journal of physics Vol. 20; no. 11; pp. 113029 - 113038 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Bristol
IOP Publishing
21.11.2018
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Subjects | |
Online Access | Get full text |
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Summary: | A single electron spin in a double quantum dot in a magnetic field is considered in terms of a four-level system. By describing the electron motion between the potential minima via spin-conserving tunneling and spin flip caused by a spin-orbit coupling, we inversely engineer faster-than-adiabatic state manipulation operations based on the geometry of four-dimensional rotations. In particular, we show how to transport a qubit among the quantum dots performing simultaneously required spin rotations. |
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Bibliography: | NJP-109071.R1 |
ISSN: | 1367-2630 1367-2630 |
DOI: | 10.1088/1367-2630/aaedd9 |