学位论文详细信息
A Versatile Collider for Ultracold Atoms
physics;bose-einstein condensation;ultracold atoms;collisions;rubidium;potassium
Rakonjac, Ana ; Kjaergaard, Niels ; Andersen, Mikkel ; Ballagh, Rob
University of Otago
关键词: physics;    bose-einstein condensation;    ultracold atoms;    collisions;    rubidium;    potassium;   
Others  :  https://ourarchive.otago.ac.nz/bitstream/10523/2564/1/RakonjacAna2012PhD.pdf
美国|英语
来源: Otago University Research Archive
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【 摘 要 】

This thesis describes the construction of a dual species setup using fermionic 40K and bosonic 87Rb with the goal of cooling to ultracold temperatures and quantum degeneracy, and also perfoming precision collision experiments using a novel optical collider. The setup is composed of a dual species magneto-optical trap, with transfer to an ultrahigh vacuum science cell achieved using a mechanical transport scheme. Atoms are cooled to ultracold temperatures using forced radio frequency evaporation in a Ioffe-Pritchard style magnetic trap. The optical collider utilises the optical dipole force to trap a sample of ultracold atoms and accelerate them towards a target sample using an acousto-optic modulator. The process of cooling 87Rb atoms in the |F = 2, mF = 2> hyperfine state to Bose-Einstein condensation is described, as well as progress towards production of ultracold 40K. Design, implementation, and characterisation of the optical collider is provided, showing that it is a precision metrology device.

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