Ultracold quantum matter

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Faraday imaging induced squeezing of a double-well Bose-Einstein condensate

(2021)

Authors:

Ebubechukwu O Ilo-Okeke, Shinichi Sunami, Christopher J Foot, Tim Byrnes
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Non-equilibrium dynamics of a 2D Bose gas near a critical point

(2021)

Authors:

Shinichi SUNAMI, David Garrick, Abel BEREGI, Elliot BENTINE, CHRISTOPHER FOOT

Abstract:

APS March Meeting focus session talk
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Preparing Narrow Velocity Distributions for Quantum Memories in Room-Temperature Alkali Vapours

(2020)

Authors:

D Main, TM Hird, S Gao, E Oguz, DJ Saunders, IA Walmsley, PM Ledingham
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Room Temperature Atomic Frequency Comb Memory for Light

(2020)

Authors:

D Main, TM Hird, S Gao, IA Walmsley, PM Ledingham
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Coherent splitting of two-dimensional Bose gases in magnetic potentials

New Journal of Physics IOP Publishing 22:10 (2020) 103040

Authors:

Aj Barker, S Sunami, D Garrick, A Beregi, K Luksch, E Bentine, Cj Foot

Abstract:

Investigating out-of-equilibrium dynamics with two-dimensional (2D) systems is of widespread theoretical interest, as these systems are strongly influenced by fluctuations and there exists a superfluid phase transition at a finite temperature. In this work, we realise matter-wave interference for degenerate Bose gases, including the first demonstration of coherent splitting of 2D Bose gases using magnetic trapping potentials. We improve the fringe contrast by imaging only a thin slice of the expanded atom clouds, which will be necessary for subsequent studies on the relaxation of the gas following a quantum quench.
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