Towards rotation sensing with a single atomic clock

Abstract

We discuss a scheme to implement a gyroscopic atom sensor with magnetically trapped ultra-cold atoms. Unlike standard light or matter wave Sagnac interferometers no free wave propagation is used. Interferometer operation is controlled only with static, radio-frequency and microwave magnetic fields, which removes the need for interferometric stability of optical laser beams. Due to the confinement of atoms, the scheme may allow the construction of small scale portable sensors. We discuss the main elements of the scheme and report on recent results and efforts towards its experimental realization.

Heisenberg-limited Sagnac interferometer with multiparticle states

“…The RF dressed potential and the coherent control atomic motion have been demonstrated in experiments [39][40][41][42][43]. These techniques could be applied to perform the state-dependent control of atomic transport on the ring-shaped traps [53]. On the other hand, our Sagnac interferometry scheme could be applied to other many-body systems, such as trapped ions [11].…”

Radio-frequency adiabatic potentials for guided atom-clock interferometry

“…Guided atom-clock interferometry [Stevenson et al, 2015;Navez et al, 2016;Fernholz et al, 2016] has recently become a topic of intensive interest 4 in this context. It relies on the measurement of frequency shifts 5 induced on a local oscillator as the superposition states probe an area (Sagnac [Sagnac, 1913;Post, 1967;Schreiber et al, 2014]) or a potential hill (gravimetry) [Roura, 2018].…”