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Title: Experimental Demonstration of a Cheap and Accurate Phase Estimation

Abstract

We demonstrate an experimental implementation of robust phase estimation (RPE) to learn the phase of a single-qubit rotation on a trapped Yb + ion qubit. Here, we show this phase can be estimated with an uncertainty below 4 × 10 -4 rad using as few as 176 total experimental samples, and our estimates exhibit Heisenberg scaling. Unlike standard phase estimation protocols, RPE neither assumes perfect state preparation and measurement, nor requires access to ancillae. We crossvalidate the results of RPE with the more resource-intensive protocol of gate set tomography.

Authors:
 [1];  [2];  [3];  [3]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Computing Research
  2. Univ. of Maryland, College Park, MD (United States). Joint Center for Quantum Information and Computer Science (QuICS)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
US Army Research Office (ARO); USDOE National Nuclear Security Administration (NNSA); USDOD
OSTI Identifier:
1361649
Alternate Identifier(s):
OSTI ID: 1356741
Report Number(s):
SAND-2017-0108J
Journal ID: ISSN 0031-9007; PRLTAO; 650211; TRN: US1702740
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 19; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Rudinger, Kenneth, Kimmel, Shelby, Lobser, Daniel, and Maunz, Peter. Experimental Demonstration of a Cheap and Accurate Phase Estimation. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.118.190502.
Rudinger, Kenneth, Kimmel, Shelby, Lobser, Daniel, & Maunz, Peter. Experimental Demonstration of a Cheap and Accurate Phase Estimation. United States. doi:10.1103/PhysRevLett.118.190502.
Rudinger, Kenneth, Kimmel, Shelby, Lobser, Daniel, and Maunz, Peter. Thu . "Experimental Demonstration of a Cheap and Accurate Phase Estimation". United States. doi:10.1103/PhysRevLett.118.190502. https://www.osti.gov/servlets/purl/1361649.
@article{osti_1361649,
title = {Experimental Demonstration of a Cheap and Accurate Phase Estimation},
author = {Rudinger, Kenneth and Kimmel, Shelby and Lobser, Daniel and Maunz, Peter},
abstractNote = {We demonstrate an experimental implementation of robust phase estimation (RPE) to learn the phase of a single-qubit rotation on a trapped Yb+ ion qubit. Here, we show this phase can be estimated with an uncertainty below 4 × 10-4 rad using as few as 176 total experimental samples, and our estimates exhibit Heisenberg scaling. Unlike standard phase estimation protocols, RPE neither assumes perfect state preparation and measurement, nor requires access to ancillae. We crossvalidate the results of RPE with the more resource-intensive protocol of gate set tomography.},
doi = {10.1103/PhysRevLett.118.190502},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 19,
volume = 118,
place = {United States},
year = {2017},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
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