Prospects for Precise Measurements with Echo Atom Interferometry
Abstrak
Echo atom interferometers have emerged as interesting alternatives to Raman interferometers for the realization of precise measurements of the gravitational acceleration g and the determination of the atomic fine structure through measurements of the atomic recoil frequency ω q . Here we review the development of different configurations of echo interferometers that are best suited to achieve these goals. We describe experiments that utilize near-resonant excitation of laser-cooled rubidium atoms by a sequence of standing wave pulses to measure ω q with a statistical uncertainty of 37 parts per billion (ppb) on a time scale of ∼50 ms and g with a statistical precision of 75 ppb. Related coherent transient techniques that have achieved the most statistically precise measurements of atomic g-factor ratios are also outlined. We discuss the reduction of prominent systematic effects in these experiments using off-resonant excitation by low-cost, high-power lasers.
Topik & Kata Kunci
Penulis (6)
Brynle Barrett
Adam Carew
Hermina C. Beica
Andrejs Vorozcovs
Alexander Pouliot
A. Kumarakrishnan
Akses Cepat
- Tahun Terbit
- 2016
- Sumber Database
- DOAJ
- DOI
- 10.3390/atoms4030019
- Akses
- Open Access ✓