Highly tunable exchange-only singlet-only qubit in a GaAs triple quantum dot

We propose an implementation of a singlet-only spin qubit in a GaAs-based triple quantum dot with a (1, 4, 1) charge occupation. In the central multielectron dot, the interplay between Coulomb interaction and an out-of-plane magnetic field creates an energy spectrum with a tunable singlet-triplet sp...

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Bibliographic Details
Main Authors: Arnau Sala, Jørgen Holme Qvist, Jeroen Danon
Format: Article
Language:English
Published: American Physical Society 2020-03-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.012062