Fast Ground State Manipulation of Neutral Atoms in Microscopic Optical Traps

Details Fast Ground State Manipulation of Neutral Atoms in Microscopic Optical Traps Fast Ground State Manipulation of Neutral Atoms in Microscopic Optical Traps

2005-09-23

arxiv.org/abs/quant-ph/0509176v1

Phys. Rev. Lett. 96, 063001 (2006)

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

We demonstrate Rabi flopping at MHz rates between ground hyperfine states of neutral $^{87}$Rb atoms that are trapped in two micron sized optical traps. Using tightly focused laser beams we demonstrate high fidelity, site specific Rabi rotations with crosstalk on neighboring sites separated by $8 \mu\rm m$ at the level of $10^{-3}$. Ramsey spectroscopy is used to measure a dephasing time of $870 \mu\rm s$ which is $\approx$ 5000 times longer than the time for a $\pi/2$ pulse.

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