Experimental demonstration of painting arbitrary and dynamic potentials for Bose–Einstein condensates
By Kevin J. Henderson, C. Ryu, C. MacCormick, M. Boshier. 2009
406 citations recorded by the source corpus.
There is a pressing need for robust and straightforward methods to create potentials for trapping Bose–Einstein condensates (BECs) that are simultaneously dynamic, fully arbitrary and sufficiently stable to not heat the ultracold gas. We show here how to accomplish these goals, using a rapidly moving laser beam that ‘paints’ a time-averaged optical dipole potential in which we create BECs in a variety of geometries, including toroids, ring lattices and square lattices. Matter wave interference patterns confirm that the trapped gas is a condensate. As a simple illustration of dynamics, we show that the technique can transform a toroidal condensate into a ring lattice and back into a toroid. The technique is general and should work with any sufficiently polarizable low-energy particles.
Subfields: Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/15bc347007da83cbabfff3cf41cb1dc34b98474d
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In Atomic and Molecular Physics, and Optics
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- Sofía Martínez-Garaot
- David Guéry-Odelin
- Andreas Ruschhaupt
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Citations in the corpus
- Quantum turbulence in trapped atomic Bose-Einstein condensates (2015, background): “However, uniform box-like potentials [54] or other arbitrary geometries have been reported [174].”
- Shortcuts to Adiabaticity (2012, methodology): “, 2002) or direct painting with a rapidly moving laser (Milner et al., 2001; Friedman et al., 2001; Henderson et al., 2009).”
- Single-Atom Trapping in Holographic 2D Arrays of Microtraps with Arbitrary Geometries (2014, background): “A first solution consists in “painting” arbitrary patterns of light using a timedependent light deflector [11, 12], over timescales that are fast compared to the typical oscillation frequency in the trap.”
- Tunable-range, photon-mediated atomic interactions in multimode cavity QED (2017, methodology): “We use dynamic trap shaping techniques [44] to split the BEC into two smaller BECs of 1.”
- Classical and Quantum Shortcuts to Adiabaticity for Scale-Invariant Driving (2014, background): “The required modulation of the α̃p(t) coefficients makes the implementation of CD protocols with non-harmonic traps particularly amenable to the painting potential technique [54].”