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Title: Dressed photon-orbital states in a quantum dot: Intervalley spin resonance

Abstract

Because of the symmetry in silicon quantum wells, silicon quantum dots have an extra degree of freedom leading to a small energy splitting called the valley splitting. This degree of freedom has been viewed alternately as a hazard, especially when the lowest valley-orbit splitting is small compared to the thermal energy, or as an asset, most prominently in proposals to use the valley degree of freedom itself as a qubit. Here we present experiments in which microwave electric field driving induces transitions between both valley-orbit and spin states. We show that this system is highly nonlinear and can be understood through the use of dressed photon-orbital states, enabling a unified understanding of six resonance lines we observe in these experiments.

Authors:
 [1];  [1];  [1];  [2];  [2];  [2];  [2];  [2];  [2];  [3]
  1. Delft Univ. of Technology (Netherlands)
  2. Univ. of Wisconsin, Madison, WI (United States)
  3. Delft Univ. of Technology (Netherlands); Intel Corp., Hillsboro, Oregon (United States)
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1357183
Alternate Identifier(s):
OSTI ID: 1352293
Grant/Contract Number:
FG02-03ER46028
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 16; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Scarlino, P., Kawakami, E., Jullien, T., Ward, D. R., Savage, D. E., Lagally, M. G., Friesen, Mark, Coppersmith, S. N., Eriksson, M. A., and Vandersypen, L. M. K. Dressed photon-orbital states in a quantum dot: Intervalley spin resonance. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.165429.
Scarlino, P., Kawakami, E., Jullien, T., Ward, D. R., Savage, D. E., Lagally, M. G., Friesen, Mark, Coppersmith, S. N., Eriksson, M. A., & Vandersypen, L. M. K. Dressed photon-orbital states in a quantum dot: Intervalley spin resonance. United States. doi:10.1103/PhysRevB.95.165429.
Scarlino, P., Kawakami, E., Jullien, T., Ward, D. R., Savage, D. E., Lagally, M. G., Friesen, Mark, Coppersmith, S. N., Eriksson, M. A., and Vandersypen, L. M. K. Wed . "Dressed photon-orbital states in a quantum dot: Intervalley spin resonance". United States. doi:10.1103/PhysRevB.95.165429. https://www.osti.gov/servlets/purl/1357183.
@article{osti_1357183,
title = {Dressed photon-orbital states in a quantum dot: Intervalley spin resonance},
author = {Scarlino, P. and Kawakami, E. and Jullien, T. and Ward, D. R. and Savage, D. E. and Lagally, M. G. and Friesen, Mark and Coppersmith, S. N. and Eriksson, M. A. and Vandersypen, L. M. K.},
abstractNote = {Because of the symmetry in silicon quantum wells, silicon quantum dots have an extra degree of freedom leading to a small energy splitting called the valley splitting. This degree of freedom has been viewed alternately as a hazard, especially when the lowest valley-orbit splitting is small compared to the thermal energy, or as an asset, most prominently in proposals to use the valley degree of freedom itself as a qubit. Here we present experiments in which microwave electric field driving induces transitions between both valley-orbit and spin states. We show that this system is highly nonlinear and can be understood through the use of dressed photon-orbital states, enabling a unified understanding of six resonance lines we observe in these experiments.},
doi = {10.1103/PhysRevB.95.165429},
journal = {Physical Review B},
number = 16,
volume = 95,
place = {United States},
year = {Wed Apr 19 00:00:00 EDT 2017},
month = {Wed Apr 19 00:00:00 EDT 2017}
}

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