Show simple item record Richards, Matthew Lee en 2017-03-17T20:06:14Z en 2017-03-17T20:06:14Z en 12-14-2016 en
dc.identifier.uri en
dc.description Thesis (M.S.) Applied Mathematics with a Concentration in Dynamical Systems en
dc.description.abstract We investigate obstructed flow in a quantum superfluid. Utilizing a flattened 2D Bose-Einstein condensate whose dynamics are prescribed by the Gross-Pitaevskii equation in a co-moving reference frame, we show that the superfluid Reynolds number characterizes the wake patterns behind the obstacle. Furthermore, by combining a fringe damping region and a boundary condition derived to emulate far-field conditions, we develop stable absorbing boundary conditions for a 2D BEC that allow simulations in the supersonic flow regime. The absorbing boundary conditions are tested for a wide range of situations whereby multiple vortices and radiation waves are succesfully absorbed at the boundary. Additionally, these absorbing boundary conditions, are very straightforward to implement. en
dc.format.extent xi, 48 pages : illustrations (some color). en
dc.language.iso en_US en
dc.publisher San Diego State University en
dc.subject.lcc QA2.2 en
dc.title Vortex generation at the wake of an impurity in a quantum superfluid en
dc.type Thesis en 2017-03-17T19:09:35Z en
dc.type.genre Thesis en Thesis (M.S.) San Diego State University, 2016. en
dc.description.discipline Thesis (M.S.) Applied Mathematics with a Concentration in Dynamical Systems en
dc.contributor.committeemember Carretero, Ricardo en
dc.contributor.committeemember Curtis, Christopher en
dc.contributor.committeemember Anderson, Matt en

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