A simulated night sky provides a background for the LSST facilities building on Cerro Pachón. The LSST will carry out a deep, 10 year imaging survey in six broad optical bands over the main survey area of 18,000 square degrees. Penn physicists play important roles in the leadership and anticipated dark energy science that will come from LSST.
Excitons are electrically neutral excited states of a material consisting of a bound state of an electron and a hole. Prof. Jay Kikkawa explores previously unseen "dark exciton" states in carbon nanotubes and shows their dependence on geometry of the nanotube.
Spatiotemporal heterogenous dynamics in air-fluidized grains near jamming. The colors represent the average speed over a time interval large enough for grain-sized rms displacement. The most mobile grains are in red, the least are in blue, across the rainbow. Note the stringy correlations of the mobile grains in red. From the lab of Prof. Doug Durian.
Majorana Fermions, Topological Insulators and Superconductors
Magnetic diffraction pattern for a Josephson junction with a topological insulator weak link. Building on a theoretical description published in 2008 by Prof. Charles Kane and Liang Fu at Penn, Stanford researchers believe the unusual behavior is explained in terms of Majorana fermions.
Euclid Mission to Explore Dark Energy
Euclid is an ESA mission to map the geometry of the dark Universe. The mission will investigate the distance-redshift relationship and the evolution of cosmic structures. Penn researchers are part of the Euclid science team.
Department of Defense (DoD) recently announced the selection of seven
distinguished university faculty scientists and engineers forming the
next new class of National Security Science and Engineering Faculty
Congratulations to one
of our talented undergraduate students, Ms. Xingting Gong, who has been chosen
as a finalist for this year’s APS LeRoy Apker Award for achievement in physics
as an undergraduate.