Niels Kjærgaard
Associate Professor
physics
Otago University
New Zealand
Biography
Niels Kjærgaard received his Ph.D. in 2001 from Aarhus University, Denmark.
Research Interest
We are presently developing a novel collider to perform high precision atomic physics measurements. This research is supported for three years by the Marsden Fund, selected in the 2011 round as one of 5 projects funded across Physics, Chemistry, and Biochemistry in New Zealand. As the high-energy colliders used in particle physics like the LHC at CERN, our apparatus will smash together bunches of atoms and analyze the spatial distribution of the scattered debris. However, our collider will operate in a regime of extreme contrast: it will use samples of atoms at nano-Kelvin temperatures accelerated to pedestrian velocities of up to a meter per second. The full execution of this collider utilizes a collaboration with theorists who have developed state-of-the-art calculations to extract key information from the experimental scattering patterns.
Publications
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Horvath, M. S. J., Thomas, R., Tiesinga, E., Deb, A. B., & Kjærgaard, N. (2017). Above-threshold scattering about a Feshbach resonance for ultracold atoms in an optical collider. Nature Communications, 8, 452. doi: 10.1038/s41467-017-00458-y
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Thomas, R., Roberts, K. O., Tiesinga, E., Wade, A. C. J., Blakie, P. B., Deb, A. B., & Kjærgaard, N. (2016). Multiple scattering dynamics of fermions at an isolated p-wave resonance. Nature Communications, 7, 12069. doi: 10.1038/ncomms12069
