Where Did Half the Light in the Universe Go?

Professor Mark Devlin (UPenn)

Prof. Mark Devlin will be presenting a public talk as part of the Museum’s popular Night Skies program. 

The evening also includes Planetarium shows and an opportunity to look through the rooftop…

Condensed Matter seminar: "Putting Patterns on Spheres: Pollen Grains and Cholesteric Liquid Crystal Shells"

Max Lavrentovich, University of Pennsylvania

Insect egg shells, mite carapaces,  pollen grain surfaces, and many other biological materials exhibit intricate surface patterns including stripes, spikes, pores, and ridges.

Math-Bio seminar: "Changes in local chromatin structure during homology search: effects of local contacts on search time"

Assaf Amitai, M.I.T.

Double-strand break (DSB) repair by homologous recombination (HR) requires an efficient and timely search for a homologous template. We developed a statistical method of analysis based on single-particle…

High Energy Seminar: "T-Duality and Scattering of Stringy States"

Jnan Maharana (IOP Bhubaneswar)

I shall review some of the salient features of T-duality from the
perspective of the worldsheet description of a closed compactified bosonic
string. The vertex operators associated with the moduli G and B…

Condensed Matter seminar: "Tracking Photoinitiated Dynamics of Photosystem I and Model Systems Through Ultrafast Spectroscopy"

Jessica Anna, University of Pennsylvania

Photosystem I (PSI) is a natural light harvesting complex that catalyzes oxygenic photosynthesis through a trans-membrane electron transfer. It is also known to be one of nature’s most efficient energy converters –…

Astro Seminar: "The Remarkable Proto-planetary Disks HL Tau: Watching the Formation of Planets"

Crystal Brogan (NRAO)

Spatially resolved ALMA studies of protoplanetary disks at millimeter wavelengths are revolutionizing the study of these precursors to solar systems. In this talk I will present results from observations of the…

Experimental Particle Physics: "Di-Higgs at the LHC: Current Status and Future Prospects"

John Alison (University of Chicago)

I will discuss motivations for searching for di-Higgs production at the LHC. Recent results and projected sensitivities will be presented with particular emphasis on the dominant hh->4b channel.

Math-Bio seminar: "Vector diffusion maps and the graph connection Laplacian"

Amit Singer, Princeton University

Vector diffusion maps (VDM) is a mathematical framework for organizing and analyzing high-dimensional datasets that generalizes diffusion maps and other nonlinear dimensionality reduction methods, such as LLE,…

High Energy Theory: Relative Entropy of Excited States in Conformal Field Theories

Gabor Sarosi (VUB)

We study the relative entropy between the reduced density matrices obtained from globally excited states in conformal field theories of arbitrary dimensions. We find a general formula in the small subsystem size…

Topology Workshop

Professors Randall Kamien, Robert MacPherson, and Konstantin Mischaikow

For more information or to register, please go here: https://goo.gl/5TKikP