Trap Frequency Measurement with a Pulsed Atom Laser

Abstract

We describe a novel method of single-shot trap frequency measurement for a confined Bose-Einstein Condensate, which uses an atom laser to repeatedly sample the mean velocity of trap oscillations as a function of time. The method is able to determine the trap frequency to an accuracy of 39~ppm (16~mHz) in a single experimental realization, improving on the literature by a factor of three. Further, we show that by employing a reconstructive aliasing approach our method can be applied to trap frequencies more than a factor of 3 greater than the sampling frequency.

arXiv comment13 pages, 6 figures, removed ~ in abstract

References in corpus (22)

• Collective excitations of a degenerate gas at the BEC-BCS crossover
• Measurement of the Temperature Dependence of the Casimir-Polder Force
• Measurement of the Casimir-Polder force through center-of-mass oscillations of a Bose-Einstein condensate
• Phase shift in atom interferometry due to spacetime curvature
• Precision Measurements of Collective Oscillations in the BEC-BCS Crossover
• A heuristic derivation of the uncertainty of the frequency determination in time series data
• Single-particle-sensitive imaging of freely propagating ultracold atoms
• Non-destructive Faraday imaging of dynamically controlled ultracold atoms
• Momentum-resolved observation of thermal and quantum depletion in an interacting Bose gas
• Observation of pairs of atoms at opposite momenta in an equilibrium interacting Bose gas
• Phase shift in atom interferometers: corrections for non-quadratic potentials and finite-duration laser pulses
• Approaching the adiabatic timescale with machine-learning
• Non-destructive interferometric characterization of an optical dipole trap
• Minimally-destructive detection of magnetically-trapped atoms using frequency-synthesised light
• Combining red- and blue-detuned optical potentials to form a Lamb-Dicke trap for a single neutral atom
• Bogoliubov-Cherenkov Radiation in an Atom Laser
• A two-state Raman coupler for coherent atom optics
• Thermalization, condensate growth, and defect formation in an out-of-equilibrium Bose gas
• Dipole oscillations of fermionic superfluids along the BEC-BCS crossover in disordered potentials
• Echo Spectroscopy of Atomic Dynamics in a Gaussian Trap via Phase Imprints
• Shaking-induced dynamics of cold atoms in magnetic traps
• Rapid generation of metastable helium Bose-Einstein condensates

Cited by in corpus (5)

• Measurement of a helium tune-out frequency: an independent test of quantum electrodynamics
• A matter wave Rarity-Tapster interferometer to demonstrate non-locality
• Production of a highly degenerate Fermi gas of metastable helium-3 atoms
• $n$-body anti-bunching in a degenerate Fermi gas of ${}^3$He* atoms
• Measurement of the $s$-wave scattering length between metastable helium isotopes