Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session P17: Quantum Computing with Donor Spins
2:30 PM–5:30 PM,
Wednesday, March 4, 2020
Room: 203
Sponsoring
Unit:
DQI
Chair: RUICHEN ZHAO, National Institute of Standards and Technology Boulder
Abstract: P17.00006 : Coherent electrical control of a single high-spin nucleus in silicon*
View Presentation
Abstract
Presenter:
Mark Johnson
(UNSW Sydney)
Authors:
Mark Johnson
(UNSW Sydney)
Serwan Asaad
(UNSW Sydney)
Vincent Mourik
(UNSW Sydney)
Benjamin Joecker
(UNSW Sydney)
Andrew Baczewski
(Sandia National Laboratories)
Hannes Roland Firgau
(UNSW Sydney)
Mateusz T Madzik
(UNSW Sydney)
Vivien Schmitt
(UNSW Sydney)
Jarryd Pla
(UNSW Sydney)
Fay E. Hudson
(UNSW Sydney)
Kohei M Itoh
(Keio University)
Jeffrey C McCallum
(University of Melbourne)
Andrew Steven Dzurak
(UNSW Sydney)
Arne Laucht
(UNSW Sydney)
Andrea Morello
(UNSW Sydney)
silicon nanoelectronic device [1]. NER enables the coherent control of a high-spin nucleus through the
electrical modulation of its quadrupole coupling. This effect was first proposed in the 1960s but never
observed in a non-polar, non-piezoelectric material, or in a single atom. Our experiments are
quantitatively matched by a microscopic theory that elucidates how an electric field distorts the bond
orbital around the atom and results in a modulation of the electric field gradient at the nucleus. The
observation of a large quadrupole splitting in a single 123 Sb nucleus paves the way to the realization of a
quantum chaotic “kicked-top” model [2] or the encoding of quantum information in an 8-level nuclear
spin qudit.
[1] S. Asaad et al., arXiv:1906.01086 (2019)
[2] V. Mourik et al., Phys. Rev. E 98, 042206 (2018)
*Funded by Australian Research Council (DP180100969) and DST (AUSMURI00002). Sandia National
Laboratories is a multi-missions laboratory managed and operated by National Technology and
Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for
DOE’s National Nuclear Security Administration under contract DE-NA0003525.
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