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Title: Smoothing of Gaussian quantum dynamics for force detection

Building on recent work by Gammelmark et al. we develop a formalism for prediction and retrodiction of Gaussian quantum systems undergoing continuous measurements. We apply the resulting formalism to study the advantage of incorporating a full measurement record and retrodiction for impulselike force detection and accelerometry. Here, we find that using retrodiction can only increase accuracy in a limited parameter regime, but that the reduction in estimation noise that it yields results in better detection of impulselike forces.
Authors:
 [1] ;  [2]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Publication Date:
Report Number(s):
SAND-2018-5854J
Journal ID: ISSN 2469-9926; PLRAAN; 663646
Grant/Contract Number:
AC04-94AL85000; NA-0003525
Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 97; Journal Issue: 4; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Research Org:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING
OSTI Identifier:
1444090
Alternate Identifier(s):
OSTI ID: 1432573

Huang, Zhishen, and Sarovar, Mohan. Smoothing of Gaussian quantum dynamics for force detection. United States: N. p., Web. doi:10.1103/PhysRevA.97.042106.
Huang, Zhishen, & Sarovar, Mohan. Smoothing of Gaussian quantum dynamics for force detection. United States. doi:10.1103/PhysRevA.97.042106.
Huang, Zhishen, and Sarovar, Mohan. 2018. "Smoothing of Gaussian quantum dynamics for force detection". United States. doi:10.1103/PhysRevA.97.042106.
@article{osti_1444090,
title = {Smoothing of Gaussian quantum dynamics for force detection},
author = {Huang, Zhishen and Sarovar, Mohan},
abstractNote = {Building on recent work by Gammelmark et al. we develop a formalism for prediction and retrodiction of Gaussian quantum systems undergoing continuous measurements. We apply the resulting formalism to study the advantage of incorporating a full measurement record and retrodiction for impulselike force detection and accelerometry. Here, we find that using retrodiction can only increase accuracy in a limited parameter regime, but that the reduction in estimation noise that it yields results in better detection of impulselike forces.},
doi = {10.1103/PhysRevA.97.042106},
journal = {Physical Review A},
number = 4,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}