---
res:
  bibo_abstract:
  - Precision sensing and manipulation of milligram-scale mechanical oscillators has
    attracted growing interest in the fields of table-top explorations of gravity
    and tests of quantum mechanics at macroscopic scales. Torsional oscillators present
    an opportunity in this regard due to their remarked isolation from environmental
    noise. For torsional motion, an effective employment of optical cavities to enhance
    optomechanical interactions—as already established for linear oscillators—so far
    faced certain challenges. Here, we propose a concept for sensing and manipulating
    torsional motion, where exclusively the torsional rotations of a pendulum are
    mapped onto the path length of a single two-mirror optical cavity. The concept
    inherently alleviates many limitations of previous approaches. A proof-of-principle
    experiment is conducted with a rigidly controlled pendulum to explore the sensing
    aspects of the concept and to identify practical limitations in a potential state-of-the
    art setup. Based on this study, we anticipate development of precision torque
    sensors utilizing torsional pendulums that can support sensitivities below 10−19Nm/√Hz,
    while the motion of the pendulums are dominated by quantum radiation pressure
    noise at sub-microwatts of incoming laser power. These developments will provide
    horizons for experiments at the interface of quantum mechanics and gravity.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Sofya
      foaf_name: Agafonova, Sofya
      foaf_surname: Agafonova
      foaf_workInfoHomepage: http://www.librecat.org/personId=09501ff6-dca7-11ea-a8ae-b3e0b9166e80
    orcid: 0000-0003-0582-2946
  - foaf_Person:
      foaf_givenName: Umang
      foaf_name: Mishra, Umang
      foaf_surname: Mishra
      foaf_workInfoHomepage: http://www.librecat.org/personId=4328fa4c-f128-11eb-9611-c107b0fe4d51
  - foaf_Person:
      foaf_givenName: Fritz R
      foaf_name: Diorico, Fritz R
      foaf_surname: Diorico
      foaf_workInfoHomepage: http://www.librecat.org/personId=2E054C4C-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-4947-8924
  - foaf_Person:
      foaf_givenName: Onur
      foaf_name: Hosten, Onur
      foaf_surname: Hosten
      foaf_workInfoHomepage: http://www.librecat.org/personId=4C02D85E-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-2031-204X
  bibo_doi: 10.1103/physrevresearch.6.013141
  bibo_issue: '1'
  bibo_volume: 6
  dct_date: 2024^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2643-1564
  dct_language: eng
  dct_publisher: American Physical Society@
  dct_title: Zigzag optical cavity for sensing and controlling torsional motion@
...