Weak-value magnetometry for precision tests of fundamental physics

POSTER

Abstract

Progress in testing fundamental physics relies on our ability to measure exceedingly small physical quantities. Using a trapped ion system as an toy model we show that an exceedingly weak synthetic magnetic field (at the scale of 10EXP-19T) can be measured with current technology. This improved sensitivity can be used to test the effects of spin coupling that affect the equivalence principle and, if present, may impact the performance of the proposed entangled optical clocks arrays.

*KLC is supported by the Na- tional Research Foundation and Ministry of Education Singapore. The work of DRT is supported by the grant FA2386-17-1-4015 of AOARD of the US Air Force. SV acknowledges support from a DST-SERB Early Career Research Award (ECR/2018/000957). Part of this work was done by SV in Nordita during the program on “new directions in quantum information”.

Presenters

  • Sai Vinjanampathy

    • Department of Physics, Indian Institute of Technology Bombay
    • Department of Physics, Indian Institute of Technology-Bombay
    • Indian Inst of Tech-Bombay

Authors

  • Sounok Ghosh

    • Department of Physics, Indian Institute of Technology Bombay

  • Leong-Chuan Kwek

    • Centre for Quantum Technologies, National University of Singapore

  • Daniel Terno

    • Department of Physics and Astronomy, Macquarie University, Sydney

  • Sai Vinjanampathy

    • Department of Physics, Indian Institute of Technology Bombay
    • Department of Physics, Indian Institute of Technology-Bombay
    • Indian Inst of Tech-Bombay