Cao, Yameng and Bennett, Anthony J. and Ellis, David and Farrer, Ian and Ritchie, David A. and Shields, Andrew J. and Noori, Yasir and Roberts, Jonny and Woodhead, Christopher and Young, Robert James (2016) Shielding noises from spins. In: Solid State Quantum Photonics 2016, 2016-03-22 - 2016-03-22, University of Sheffield.
Abstract
Electrons in InAs/GaAs quantum dots are strong candidates for qubits due to quantum confinement of the spin ½ system. However, electrons couple with nearby nuclear spins and the fluctuating electrostatic environment, these impose an undesired bottleneck on the performance of a quantum spin device. We show that the fluctuating charge and spin environment may be circumvented to an extent. Compared to InAs/GaAs quantum dots, two-dimensional materials may be used to minimise nuclear spin noise; combined with careful sample design a low-decoherence platform is envisioned.