Physics and Astronomy Thesis Defense - Nan Jiang - Dartmouth College

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Physics and Astronomy Thesis Defense - Nan Jiang - Dartmouth College

Title: Stability of Physical Systems: A Configurational Entropic Approach"

Friday, May 26, 2017
1:00pm-2:00pm
Wilder 202
Intended Audience(s): Public
Categories:

Abstract:  We apply a unified framework called configurational entropy (CE) to address the stability issues of various physical systems. The CE is a shannon-like shape complexity measure constructed from the Fourier transform. We first obtain bounds on the stability regions of self-gravitating astrophysical objects including Newtonian polytropes, neutron stars with an Oppenheimer-Volkoff equation of state and self-gravitating complex scalar field (boson stars) with accuracy of a few percent. We then show that CE can serve as a predictor of spontaneous decay rates for the hydrogen atom. Finally, we demonstrate that CE also tracks the trend of false vacuum decay rates.

For more information, contact:
Tressena Manning
603-646-2854

Events are free and open to the public unless otherwise noted.