Quantum enhanced SU(1,1) matter wave interferometry in a ring cavity
- URL: http://arxiv.org/abs/2309.12980v1
- Date: Fri, 22 Sep 2023 16:23:19 GMT
- Title: Quantum enhanced SU(1,1) matter wave interferometry in a ring cavity
- Authors: Ivor Kre\v{s}i\'c and Thorsten Ackemann
- Abstract summary: We numerically explore a novel method for performing SU (1,1) interferometry beyond the standard quantum limit.
Timescales of the interferometer operation are here given by the inverse of photonic frequency, and are orders of magnitude shorter than the timescales of collisional spin-mixing based interferometers.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum squeezed states offer metrological enhancement as compared to their
classical counterparts. Here, we devise and numerically explore a novel method
for performing SU(1,1) interferometry beyond the standard quantum limit, using
quasi-cyclic nonlinear wave mixing dynamics of ultracold atoms in a ring
cavity. The method is based on generating quantum correlations between many
atoms via photon mediated optomechanical interaction. Timescales of the
interferometer operation are here given by the inverse of photonic recoil
frequency, and are orders of magnitude shorter than the timescales of
collisional spin-mixing based interferometers. Such shorter timescales should
enable not only faster measurement cycles, but also lower atomic losses from
the trap during measurement, which may lead to significant quantum metrological
gain of matter wave interferometry in state of the art cavity setups.
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