Spin preservation during THz orbital pumping of shallow donors in silicon

K. Saeedi; N. Stavriasi; B. Redlich; A. F. G. van der Meer; R. Mikhaylovskiy; A. V. Kimel; C. R. Pidgeon; B. N. Murdin

doi:10.1088/1361-648X/ab31d2

Spin preservation during THz orbital pumping of shallow donors in silicon

K. Saeedi, N. Stavriasi, B. Redlich, A. F. G. van der Meer, R. Mikhaylovskiy, A. V. Kimel, C. R. Pidgeon, B. N. Murdin

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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.

Original language	English
Article number	435401
Journal	Journal of Physics: Condensed Matter
Volume	31
Issue number	43
Early online date	26 Jul 2019
DOIs	https://doi.org/10.1088/1361-648X/ab31d2
Publication status	Published - 30 Oct 2019

Keywords

D0X spin readout
THz orbital pumping
electron spin of donors in silicon
free electron laser FELIX
optical cycling
qubit gate scheme
spin preservation

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1088/1361-648X/ab31d2

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This is an author-created, un-copyedited version of an article published in Journal of Physics: Condensed Matter. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-648X/ab31d2
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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.",

keywords = "D0X spin readout, THz orbital pumping, electron spin of donors in silicon, free electron laser FELIX, optical cycling, qubit gate scheme, spin preservation",

author = "K. Saeedi and N. Stavriasi and B. Redlich and {van der Meer}, {A. F. G.} and R. Mikhaylovskiy and Kimel, {A. V.} and Pidgeon, {C. R.} and Murdin, {B. N.}",

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AU - Saeedi, K.

AU - Stavriasi, N.

AU - Redlich, B.

AU - van der Meer, A. F. G.

AU - Mikhaylovskiy, R.

AU - Kimel, A. V.

AU - Pidgeon, C. R.

AU - Murdin, B. N.

PY - 2019/10/30

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N2 - 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.

AB - 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.

KW - D0X spin readout

KW - THz orbital pumping

KW - electron spin of donors in silicon

KW - free electron laser FELIX

KW - optical cycling

KW - qubit gate scheme

KW - spin preservation

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DO - 10.1088/1361-648X/ab31d2

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VL - 31

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

IS - 43

M1 - 435401

ER -

Spin preservation during THz orbital pumping of shallow donors in silicon

Abstract

Keywords

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