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Title: A dressed spin qubit in silicon

Abstract

Coherent dressing of a quantum two-level system provides access to a new quantum system with improved properties—a different and easily tunable level splitting, faster control and longer coherence times. In our work we investigate the properties of the dressed, donor-bound electron spin in silicon, and assess its potential as a quantum bit in scalable architectures. The two dressed spin-polariton levels constitute a quantum bit that can be coherently driven with an oscillating magnetic field, an oscillating electric field, frequency modulation of the driving field or a simple detuning pulse. We measure coherence times of T*2p = 2.4 ms and THahn2p = 9 ms, one order of magnitude longer than those of the undressed spin. Moreover, the use of the dressed states enables coherent coupling of the solid-state spins to electric fields and mechanical oscillations.

Authors:
 [1];  [1];  [1]; ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1];  [2];  [3];  [3];  [1]; ORCiD logo [1]
  1. UNSW Australia, Sydney, NSW (Australia)
  2. Keio Univ., Kanagawa (Japan)
  3. Univ. of Melbourne, Melbourne, VIC (Australia)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1329153
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Nature Nanotechnology
Additional Journal Information:
Journal Name: Nature Nanotechnology; Journal ID: ISSN 1748-3387
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 36 MATERIALS SCIENCE; quantum information; qubits

Citation Formats

Laucht, Arne, Kalra, Rachpon, Simmons, Stephanie, Dehollain, Juan P., Muhonen, Juha T., Mohiyaddin, Fahd A., Freer, Solomon, Hudson, Fay E., Itoh, Kohei M., Jamieson, David N., McCallum, Jeffrey C., Dzurak, Andrew S., and Morello, A. A dressed spin qubit in silicon. United States: N. p., 2016. Web. doi:10.1038/nnano.2016.178.
Laucht, Arne, Kalra, Rachpon, Simmons, Stephanie, Dehollain, Juan P., Muhonen, Juha T., Mohiyaddin, Fahd A., Freer, Solomon, Hudson, Fay E., Itoh, Kohei M., Jamieson, David N., McCallum, Jeffrey C., Dzurak, Andrew S., & Morello, A. A dressed spin qubit in silicon. United States. https://doi.org/10.1038/nnano.2016.178
Laucht, Arne, Kalra, Rachpon, Simmons, Stephanie, Dehollain, Juan P., Muhonen, Juha T., Mohiyaddin, Fahd A., Freer, Solomon, Hudson, Fay E., Itoh, Kohei M., Jamieson, David N., McCallum, Jeffrey C., Dzurak, Andrew S., and Morello, A. Mon . "A dressed spin qubit in silicon". United States. https://doi.org/10.1038/nnano.2016.178. https://www.osti.gov/servlets/purl/1329153.
@article{osti_1329153,
title = {A dressed spin qubit in silicon},
author = {Laucht, Arne and Kalra, Rachpon and Simmons, Stephanie and Dehollain, Juan P. and Muhonen, Juha T. and Mohiyaddin, Fahd A. and Freer, Solomon and Hudson, Fay E. and Itoh, Kohei M. and Jamieson, David N. and McCallum, Jeffrey C. and Dzurak, Andrew S. and Morello, A.},
abstractNote = {Coherent dressing of a quantum two-level system provides access to a new quantum system with improved properties—a different and easily tunable level splitting, faster control and longer coherence times. In our work we investigate the properties of the dressed, donor-bound electron spin in silicon, and assess its potential as a quantum bit in scalable architectures. The two dressed spin-polariton levels constitute a quantum bit that can be coherently driven with an oscillating magnetic field, an oscillating electric field, frequency modulation of the driving field or a simple detuning pulse. We measure coherence times of T*2p = 2.4 ms and THahn2p = 9 ms, one order of magnitude longer than those of the undressed spin. Moreover, the use of the dressed states enables coherent coupling of the solid-state spins to electric fields and mechanical oscillations.},
doi = {10.1038/nnano.2016.178},
journal = {Nature Nanotechnology},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 17 00:00:00 EDT 2016},
month = {Mon Oct 17 00:00:00 EDT 2016}
}

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