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Spin preservation during THz orbital pumping of shallow donors in silicon

Saeedi, Kamyar, Stavrias, Nikolas, Redlich, Britta, van der Meer, A.F.G., Mikhaylovskiy, Rostislav, Kimel, Alexey V, Pidgeon, C R and Murdin, B N (2019) Spin preservation during THz orbital pumping of shallow donors in silicon Journal of Physics: Condensed Matter.

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Abstract

We investigate the spin relaxation under conditions of optical excitation between the Rydberg orbital states of phosphorus donor impurities in silicon. Here we show that the spin relaxation is less than a few percent, even after multiple excitation/relaxation cycles. The observed high level of spin preservation may be useful for readout cycling or in quantum information schemes where coupling of neighbor qubits is via orbital excitation.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Saeedi, Kamyar
Stavrias, Nikolas
Redlich, Britta
van der Meer, A.F.G.
Mikhaylovskiy, Rostislav
Kimel, Alexey V
Pidgeon, C R
Murdin, B NB.Murdin@surrey.ac.uk
Date : 2019
DOI : 10.1088/1361-648X/ab31d2
Copyright Disclaimer : © 2019 IOP Publishing Ltd.
Depositing User : Clive Harris
Date Deposited : 23 Jul 2019 15:11
Last Modified : 23 Jul 2019 15:11
URI: http://epubs.surrey.ac.uk/id/eprint/852300

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