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Title: Backaction-evading impulse measurement with mechanical quantum sensors

Abstract

The quantum measurement of any observable naturally leads to noise added by the act of measurement. Approaches to evade or reduce this noise can lead to substantial improvements in a wide variety of sensors, from laser interferometers to precision magnetometers and more. In this paper, we develop a measurement protocol based upon pioneering work by the gravitational wave community which allows for reduction of added noise from measurement by coupling an optical field to the momentum of a small mirror. As a specific implementation, we present a continuous measurement protocol using a double-ring optomechanical cavity. We demonstrate that, with experimentally relevant parameters, this protocol can lead to significant backaction noise evasion, yielding measurement noise below the standard quantum limit over many decades of frequency.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [1]
  1. Univ. of Maryland, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  2. Univ. of Maryland, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States) ; Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Univ. of Maryland, College Park, MD (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1574959
Report Number(s):
arXiv:1910.11892; FERMILAB-PUB-19-537-T
Journal ID: ISSN 2469-9926; oai:inspirehep.net:1761440
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 102; Journal Issue: 2; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Optomechanics; Quantum optics

Citation Formats

Ghosh, Sohitri, Carney, Daniel, Shawhan, Peter, and Taylor, Jacob M. Backaction-evading impulse measurement with mechanical quantum sensors. United States: N. p., 2020. Web. doi:10.1103/physreva.102.023525.
Ghosh, Sohitri, Carney, Daniel, Shawhan, Peter, & Taylor, Jacob M. Backaction-evading impulse measurement with mechanical quantum sensors. United States. doi:10.1103/physreva.102.023525.
Ghosh, Sohitri, Carney, Daniel, Shawhan, Peter, and Taylor, Jacob M. Fri . "Backaction-evading impulse measurement with mechanical quantum sensors". United States. doi:10.1103/physreva.102.023525.
@article{osti_1574959,
title = {Backaction-evading impulse measurement with mechanical quantum sensors},
author = {Ghosh, Sohitri and Carney, Daniel and Shawhan, Peter and Taylor, Jacob M.},
abstractNote = {The quantum measurement of any observable naturally leads to noise added by the act of measurement. Approaches to evade or reduce this noise can lead to substantial improvements in a wide variety of sensors, from laser interferometers to precision magnetometers and more. In this paper, we develop a measurement protocol based upon pioneering work by the gravitational wave community which allows for reduction of added noise from measurement by coupling an optical field to the momentum of a small mirror. As a specific implementation, we present a continuous measurement protocol using a double-ring optomechanical cavity. We demonstrate that, with experimentally relevant parameters, this protocol can lead to significant backaction noise evasion, yielding measurement noise below the standard quantum limit over many decades of frequency.},
doi = {10.1103/physreva.102.023525},
journal = {Physical Review A},
issn = {2469-9926},
number = 2,
volume = 102,
place = {United States},
year = {2020},
month = {8}
}

Journal Article:
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