Valley splitting of single-electron Si MOS quantum dots
Abstract
Silicon-based metal-oxide-semiconductor quantum dots are prominent candidates for high-fidelity, manufacturable qubits. Due to silicon's band structure, additional low-energy states persist in these devices, presenting both challenges and opportunities. Although the physics governing these valley states has been the subject of intense study, quantitative agreement between experiment and theory remains elusive. Here, we present data from an experiment probing the valley states of quantum dot devices and develop a theory that is in quantitative agreement with both this and a recently reported experiment. Through sampling millions of realistic cases of interface roughness, our method provides evidence that the valley physics between the two samples is essentially the same.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Univ. de Sherbrooke, Sherbrooke, QC (Canada); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- The Univ. of New South Wales, Sydney (Australia)
- Univ. of Cambridge, Cambridge (United Kingdom)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1346544
- Alternate Identifier(s):
- OSTI ID: 1421186
- Report Number(s):
- SAND-2016-10270J
Journal ID: ISSN 0003-6951; APPLAB; 648248; TRN: US1701126
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 109; Journal Issue: 25; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Gamble, John King, Harvey-Collard, Patrick, Jacobson, N. Tobias, Baczewski, Andrew D., Nielsen, Erik, Maurer, Leon, Montano, Ines, Rudolph, Martin, Carroll, M. S., Yang, C. H., Rossi, A., Dzurak, A. S., and Muller, Richard P. Valley splitting of single-electron Si MOS quantum dots. United States: N. p., 2016.
Web. doi:10.1063/1.4972514.
Gamble, John King, Harvey-Collard, Patrick, Jacobson, N. Tobias, Baczewski, Andrew D., Nielsen, Erik, Maurer, Leon, Montano, Ines, Rudolph, Martin, Carroll, M. S., Yang, C. H., Rossi, A., Dzurak, A. S., & Muller, Richard P. Valley splitting of single-electron Si MOS quantum dots. United States. https://doi.org/10.1063/1.4972514
Gamble, John King, Harvey-Collard, Patrick, Jacobson, N. Tobias, Baczewski, Andrew D., Nielsen, Erik, Maurer, Leon, Montano, Ines, Rudolph, Martin, Carroll, M. S., Yang, C. H., Rossi, A., Dzurak, A. S., and Muller, Richard P. Mon .
"Valley splitting of single-electron Si MOS quantum dots". United States. https://doi.org/10.1063/1.4972514. https://www.osti.gov/servlets/purl/1346544.
@article{osti_1346544,
title = {Valley splitting of single-electron Si MOS quantum dots},
author = {Gamble, John King and Harvey-Collard, Patrick and Jacobson, N. Tobias and Baczewski, Andrew D. and Nielsen, Erik and Maurer, Leon and Montano, Ines and Rudolph, Martin and Carroll, M. S. and Yang, C. H. and Rossi, A. and Dzurak, A. S. and Muller, Richard P.},
abstractNote = {Silicon-based metal-oxide-semiconductor quantum dots are prominent candidates for high-fidelity, manufacturable qubits. Due to silicon's band structure, additional low-energy states persist in these devices, presenting both challenges and opportunities. Although the physics governing these valley states has been the subject of intense study, quantitative agreement between experiment and theory remains elusive. Here, we present data from an experiment probing the valley states of quantum dot devices and develop a theory that is in quantitative agreement with both this and a recently reported experiment. Through sampling millions of realistic cases of interface roughness, our method provides evidence that the valley physics between the two samples is essentially the same.},
doi = {10.1063/1.4972514},
journal = {Applied Physics Letters},
number = 25,
volume = 109,
place = {United States},
year = {Mon Dec 19 00:00:00 EST 2016},
month = {Mon Dec 19 00:00:00 EST 2016}
}
Web of Science
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