James Stickney
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View article: Dynamics within a tunable harmonic plus quartic waveguide
Dynamics within a tunable harmonic plus quartic waveguide Open
We present an analytical solution to the dynamics of a noninteracting cloud\nof thermal atoms in a cigar-shaped harmonic trap with a quartic perturbation\nalong the axial direction. We calculate the first and second moments of\nposition, w…
View article: Tunable axial potentials for atom-chip waveguides
Tunable axial potentials for atom-chip waveguides Open
We present a method for generating precise magnetic potentials that can be\ndescribed by a polynomial series along the axis of a cold atom waveguide near\nthe surface of an atom chip. With a single chip design consisting of several\nwire p…
View article: Ex vacuo atom chip Bose-Einstein condensate
Ex vacuo atom chip Bose-Einstein condensate Open
Ex vacuo atom chips, used in conjunction with a custom thin walled vacuum chamber, have enabled the rapid replacement of atom chips for magnetically trapped cold atom experiments. Atoms were trapped in >2 kHz magnetic traps created usin…
View article: A Wigner Function Approach to Coherence in a Talbot-Lau Interferometer
A Wigner Function Approach to Coherence in a Talbot-Lau Interferometer Open
Using a thermal gas, we model the signal of a trapped interferometer. This interferometer uses two short laser pulses, separated by time T, which act as a phase grating for the matter waves. Near time 2 T , there is an echo in the cloud’s …