Past Events

  • Condensed Matter Seminar: “Making Cells with Active Micro-tubule Mixtures”


    Professor Jennifer Ross, UMass Amherst

    Biology utilizes energy to organize itself from the nanoscale to the macroscopic scale. We seek to determine the universal principles of organization from the molecular scale that gives rise to architecture on the cellular scale. We are specifically interested in the organization of the microtubule cytoskeleton, a rigid, yet versatile network in most cell types. Microtubules in the cell are organized by motor proteins and crosslinkers.

  • Astronomy Seminar: Massive Galaxy Growth since Cosmic Noon

    DRL A6

    Stijn Wuyts (MPE Garching)

    The Hubble Space Telescope and integral-field spectrographs on the
    ground offer us an unprecedented view of the internal physics within
    high-redshift galaxies.  Exploiting the powerful synergy between
    multi-band high-resolution imaging from CANDELS and spectroscopy from
    3D-HST, SINS, and KMOS^3D, I will present new insights on resolved
    stellar populations, bulge growth and quenching since z ~ 2.5, as well
    as dynamical constraints on the mass budget in early disks.  I will
    emphasize the importance of using both stellar and gaseous tracers to

  • Department Colloquium: The First Luminous Objects and the Epoch of Reionization


    Adam Lidz, UPenn

    An exciting and largely unexplored frontier in observational and theoretical cosmology is to understand the properties of the universe between 400,000 years and one billion years after the big bang. Notably, the first galaxies formed in this time period, perhaps
     a few hundred million years after the big bang.  These galaxies
     strongly influenced the gas in their surroundings as well as the
     formation of subsequent generations of galaxies. The early galaxies
     emitted ultraviolet light and ionized "bubbles" of hydrogen gas around

  • *New Course this Fall*


    Professor Gary Gibbons, University of Pennsylvania


    Prerequisites: A first course in general relativity, including the idea of a Lie derivative and Killing vector fields

    The course will start with a heuristic account of the Chandrasekhar limit for white dwarfs and the maximum mass of neutron stars. This motivates the study of spheri- cally symmetric gravitational collapse and the introduction of Eddington-Finkelstein and Krusakl coordinates. Causal structure is illustrated by the introduction of Carter-Penrose diagrams and Penrose’s notion of a Conformal Boundary.

  • Dissertation Defense: "First Measurements of the Differential Cross Sections of Higgs Boson Production and Decay in the 4 Lepton Final State"

    David Rittenhouse Laboratory 4N9

    Jonathon Stahlman, University of Pennsylvania

  • Condensed Matter Seminar: "Building Colloidal Aggregates in Anisotropic Media"


    Professor Colin Denniston, Western Ontario University

    Colloids in a liquid crystal matrix exhibit very anisotropic interactions. Further, these interactions can be altered by both properties of the colloid and of the liquid crystal. This gives the potential for creating specific colloidal aggregates and crystals by manipulating the interactions between colloids using the colloidal shape, surface properties, and even dynamics. However, modelling these interacting colloids in a liquid crystal is very challenging.

  • Astronomy Seminar: TBD

    DRL A6


  • BioMedical & Life Sciences Career Fair

    Atrium, Biomedical Research Building II, 421 Curie Boulevard

    Employers, Recruiters, Penn alumni, and former Penn Postdoctoral Researchers

    Please note this event is open to all Penn PhD Students and Postdocs.

    For more information, visit:

  • Experimental Particle Physics Seminar: Production of High Transverse Momentum Vector Bosons Reconstructed as Single Jets and its Application to Search for NP at the

    David Rittenhouse Laboratory 3W2

    Chunhui Chen, Iowa State University


  • Condensed Matter Seminar: Optics at the Extreme


    Professor Nader Enghetta, University of Pennsylvania

    Recent development in condensed matter physics and nanoscience has made it possible to tailor materials with unusual parameters and characteristics.  In my group, we have been exploring light-matter interaction in metamaterials and metastructures with extreme parameters, such near-zero permittivity and near-zero permeability, and with extreme features such as very high phase velocity, very low energy velocity, extremely thin (one-atom-thick metasurfaces), subwavelength nonreciprocal vortexes, extreme anisotropy, giant nonlinearity in phase-change dynamics, “static optics”, nano