56 citations · 56 across the 1 of their papers we have counts for
4 papers
Partial-Transfer Absorption Imaging: A versatile technique for optimal imaging of ultracold gases
Anand Ramanathan, Sérgio R. Muniz, Kevin C. Wright +4
Partial-transfer absorption imaging is a tool that enables optimal imaging of atomic clouds for a wide range of optical depths. In contrast to standard absorption imaging, the tech…
Superflow in a toroidal Bose-Einstein condensate: an atom circuit with a tunable weak link
A. Ramanathan, K. C. Wright, S. R. Muniz +6
We have created a long-lived (~ 40 s) persistent current in a toroidal Bose-Einstein condensate held in an all-optical trap. A repulsive optical barrier creates a tunable weak link…
Phase fluctuations in anisotropic Bose condensates: from cigars to rings
L. Mathey, A. Ramanathan, K. C. Wright +3
We study the phase-fluctuating condensate regime of ultra-cold atoms trapped in a ring-shaped trap geometry, which has been realized in recent experiments. We first consider a simp…
Observation of a 2D Bose-gas: from thermal to quasi-condensate to superfluid
P. Cladé, C. Ryu, A. Ramanathan +2
We present experimental results on a Bose gas in a quasi-2D geometry near the Berezinskii, Kosterlitz and Thouless (BKT) transition temperature. By measuring the density profile, \…