Summer 2014 Seminar
Talks are 1:00 pm on Wednesdays in Olin 451, unless otherwise noted.
June 4, 2014. TIME: 11:00 am. LOCATION: Olin 264
Muon g-2: precision particle physics at Fermilab
Robin Bjorkquist, Cornell UniversityShow/hide abstract.
FRIDAY, June 13, 2014
Quantum Mechanics meet Fluid Dynamics: Visualizing Superfluid Helium
Matt Paoletti '05, Johns Hopkins University Applied Physics LaboratoryShow/hide abstract.
June 18, 2014
Probabilistic foundations for quantum mechanics
Alex Wilce, Department of Mathematics, Susquehanna UniversityShow/hide abstract.
June 25, 2014
Why Aren't There More Stars? The Battle Against Gravity in our Galaxy's Nurseries
Ned Ladd, Bucknell UniversityShow/hide abstract.
July 2, 2014
Phase Field Modelling and Numerical Instability
Ben Vollmayr-Lee, Bucknell UniversityShow/hide abstract.
July 9, 2014
Particle vs. Wave: The Ongoing Saga of Light
David Schoepf, Bucknell UniversityShow/hide abstract.
July 16, 2014
The Sensitivity of Non-Uniform Sampling NMR
David Rovnyak, Department of Chemistry, Bucknell University
Abstract: The advent of multi-dimensional NMR, grounded in the use of the Fast-Fourier Transform (FFT) algorithm, ignited decades of innovation and discovery in studying the structures and dynamics of molecules. A modified method for acquiring multi-dimensional NMR data, termed non-uniform sampling (NUS), can informally be described as “skipping” certain data points. Although offering several advantages, NUS data can not take advantage of the FFT and the theorems associated with its use. We have been developing exact analytic expressions, with extensive experimental verification, that place some of the advantages of NUS methods on stronger theoretical foundations. We recently solved the exact sensitivity of NUS-NMR of decaying signals, showing that NUS leads to significant and predictable sensitivity enhancements that enable new science. In particular: NUS can simultaneously improve resolution and sensitivity, a statement that cannot be applied to conventional data acquisition. The theory also indicates road maps for further optimizations of NUS resolution and sensitivity that are currently being developed in our lab.
July 23, 2014