Steerable optical tweezers for ultracold atom studies

Abstract

We report on the implementation of an optical tweezer system for controlled transport of ultracold atoms along a narrow, static confinement channel. The tweezer system is based on high-efficiency acousto-optical deflectors and offers two-dimensional control over beam position. This opens up the possibility for tracking the transport channel when shuttling atomic clouds along the guide, forestalling atom spilling. Multiple clouds can be tracked independently by time-shared tweezer beams addressing individual sites in the channel. The deflectors are controlled using a multichannel direct digital synthesizer, which receives instructions on a sub-microsecond time scale from a field-programmable gate array. Using the tweezer system, we demonstrate sequential binary splitting of an ultracold ${}^{87}\mathrm{Rb}$ cloud into $2^5$ clouds.

4 pages, 5 figures, 1 movie link

References in corpus (2)

• Experimental demonstration of painting arbitrary and dynamic potentials for Bose-Einstein condensates
• Long Distance Transport of Ultracold Atoms using a 1D optical lattice

Cited by in corpus (28)

• Introduction to topological quantum computation with non-Abelian anyons
• Loss of ultracold RbCs molecules via optical excitation of long-lived two-body collision complexes
• Bose-Einstein condensation in large time-averaged optical ring potentials
• Data capacity scaling of a distributed Rydberg atomic receiver array
• Controlled multi-photon subtraction with cascaded Rydberg superatoms as single-photon absorbers
• Controlled transport of stored light
• Braiding and fusion of non-Abelian vortex anyons
• Measuring the disorder of vortex lattices in a Bose-Einstein condensate
• A route to non-Abelian quantum turbulence in spinor Bose-Einstein condensates
• Multiple scattering dynamics of fermions at an isolated p-wave resonance
• Direct measurement of the Wigner function of atoms in an optical trap
• Dynamic high-resolution optical trapping of ultracold atoms
• Observation of bound state self-interaction in a nano-eV atom collider
• A three-dimensional steerable optical tweezer system for ultracold atoms
• Above threshold scattering about a Feshbach resonance for ultracold atoms in an optical collider
• Correlation steering in the angularly multimode Raman atomic memory
• Dispersive optical detection of magnetic Feshbach resonances in ultracold gases
• Optical runaway evaporation for multi-BEC production
• Phase and micromotion of Bose-Einstein condensates in a time-averaged ring trap
• An optical elevator for precise delivery of cold atoms using an acousto-optical deflector
• Quantum Scattering in an Optical Collider for Ultracold Atoms
• Deterministic quantum state transfer of atoms in a random magnetic field
• Preparation of ultra-cold atomic-ensemble arrays using time-multiplexed optical tweezers
• Strong zero-field Förster resonances in K-Rb Rydberg systems
• Coprime Bivariate Bicycle Codes and Their Layouts on Cold Atoms
• Efficient and fast algorithms to generate holograms for optical tweezers
• Molecule-molecule and atom-molecule collisions with ultracold RbCs molecules
• Bosonic Quantum Dynamics Following Colliding Potential Wells