An optical lattice on an atom chip
arXiv:0905.2207 · doi:10.1364/OL.34.003463
Abstract
Optical dipole traps and atom chips are two very powerful tools for the quantum manipulation of neutral atoms. We demonstrate that both methods can be combined by creating an optical lattice potential on an atom chip. A red-detuned laser beam is retro-reflected using the atom chip surface as a high-quality mirror, generating a vertical array of purely optical oblate traps. We load thermal atoms from the chip into the lattice and observe cooling into the two-dimensional regime where the thermal energy is smaller than a quantum of transverse excitation. Using a chip-generated Bose-Einstein condensate, we demonstrate coherent Bloch oscillations in the lattice.
3 pages, 2 figures
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- Quantum measurement backaction from a BEC coupled to a mechanical oscillator
- An on-chip optical lattice for cold atom experiments
- Generating an effective magnetic lattice for cold atoms
- A minimalistic and optimized conveyor belt for neutral atoms
- Single-beam grating-chip 3D and 1D optical lattices
- Optically induced conical intersections in traps for ultracold atoms and molecules
- Solitary Matter Waves in Combined Linear and Nonlinear Potentials: Detection, Stability, and Dynamics