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arXiv · 1312.3402

Periodic Array of Bose-Einstein condensates in a Magnetic Lattice

Smitha Jose·Prince Surendran·Yibo Wang·Ivan Herrera·Leszek Krzemien·Shannon Whitlock·Russell McLean·Andrei Sidorov·Peter Hannaford
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Abstract

We report the realization of a periodic array of Bose-Einstein condensates of 87Rb |F = 1; mF = -1> atoms trapped in a one-dimensional magnetic lattice close (8 micrometres) to the surface of an atom chip. A clear signature for the onset of BEC in the magnetic lattice is provided by in-situ site-resolved radiofrequency (RF) spectra, which exhibit a pronounced bimodal distribution consisting of a narrow component characteristic of a BEC together with a broad thermal cloud component. Similar bimodal distributions are found for various sites across the magnetic lattice. The realization of a periodic array of multiple BECs in a magnetic lattice represents a major advance towards the implementation of magnetic lattices to simulate many-body condensed matter phenomena in lattices of complex geometry and arbitrary period.

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Smitha Jose, Prince Surendran, Yibo Wang, Ivan Herrera, Leszek Krzemien, Shannon Whitlock, Russell McLean, Andrei Sidorov, Peter Hannaford. 2014-05-06. Periodic Array of Bose-Einstein condensates in a Magnetic Lattice. https://doi.org/10.1103/physreva.89.051602

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