Analysis and PDE seminar

Date: 
02/13/2018 - 11:00am to 12:00pm
Location: 
POT 745
Speaker(s) / Presenter(s): 
Rafael Benguria, Universidad Catolica de Chile

Gradient Corrections in Atomic Physics

 

During the last few years there has been a systematic pursuit for sharp estimates 
of the energy components of atomic systems in terms of their single particle density. 
The common feature of these estimates is that they include corrections that 
depend on the gradient of the density. In this talk I will review these results. 
The most recent result is the sharp estimate of P.T. Nam on the kinetic energy. 
I will also present some recent results concerning geometric estimates 
for generalized Poincaré inequalities obtained in collaboration with C. Vallejos and H. Van Den Bosch. 
These geometric estimates are a useful tool to estimate the numerical value of the constant of 
Nam's gradient correction term.
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