Past Events

  • Math-Bio Seminar: "The joint total tree length at linked loci in populations of variable size"

    318 Carolyn Lynch Lab

    Matthias Steinrücken, University of Massachusetts Amherst

    The inference of historical population sizes from contemporary genomic sequence data has gained a lot of attention in recent years. A particular focus has been on recent exponential growth in humans. This recent growth has had a strong impact on the distribution of rare genetic variants, which are of particular importance when studying disease related genetic variation. The popular PSMC method (Li and Durbin, 2011) can be used to infer population sizes from a sample of two chromosomes.

  • Eli Burstein Lecture in Materials Science: "Jamming by Design"

    Towne Building (220 S 33rd Street), Heilmeier Hall Room 100

    Heinrich Jaeger (Chicago)

    In materials science, high performance is typically associated with structural regularity and order. This holds for traditional solids such as crystals as well as for many types of nanoscale devices. However, there are circumstances where disorder can be harnessed to achieve performance not possible with approaches based on regularity. Recent research has shown opportunities specifically for soft matter.

  • Robert Maddin Lecture in Materials Science: "Finding New Electronic Materials"

    The Glandt Forum Krishna P. Singh Center for Nanotechnology

    Robert J. Cava (Princeton)

    “New materials give new properties” is a phrase that I think best describes the goal of our research program.

  • High Energy Theory: "TBA"

    David Rittenhouse Laboratory, 2N36

    Matthew Schwartz (Harvard)

  • Condensed Matter seminar: "Non-linear elasticity and relaxation in polymer networks and soft tissues"

    David Rittenhouse Laboratory, A4

    Paul Janmey, University of Pennsylvania

    The stiffness of tissues in which cells are embedded has effects on cell structure and function that can act independently of or override chemical stimuli.

  • Astro Seminar: "The Circumgalactic Medium"

    David Rittenhouse Laboratory, A4

    Molly Peeples (STSCI)

    The circumgalactic medium (CGM) serves as a fuel supply, waste dump, and recycling center for galaxies' baryons and metals. Our empirical understanding of this vast reservoir of gas surrounding galaxies has been revolutionized in the seven years since the installation of the Cosmic Origins Spectrographic (COS) aboard the Hubble Space Telescope in 2009. I will review the observational landscape of the low-redshift CGM and how it is challenging prevailing theories of galaxy evolution.

  • Math-Bio seminar: "TBA"

    Carolyn Lynch Laboratory, room 318

    Amaury Lambert, Université Pierre et Marie Curie (UPMC)

  • High Energy Theory: "TBA"

    David Rittenhouse Laboratory, 2N36

    Paul S. Aspinwall (Duke)

  • Condensed Matter seminar: "Engineering spin-cavity interactions with quantum dot molecules"

    David Rittenhouse Laboratory, A4

    Patrick Vora, George Mason University

    Quantum information based on optical cavities often utilizes atomic Λ-systems consisting of two Zeeman split levels connected by common excited states. However, the exploration of solid-state Λ-systems coupled to cavities is only now beginning. Long-lived spin states in charged InAs quantum dots (QDs) are known to form a Λ-system and have been demonstrated as an optically addressable spin qubit [1].

  • Astro Seminar: "TBA"

    David Rittenhouse Laboratory, A4

    Paul Martini (Ohio State)

    The tight correlation between the stellar mass and gas-phase metallicity of galaxies is a valuable diagnostic of galaxy evolution. The physical processes that determine the mass-metallicity relation include the inflow rate of relatively pristine gas from the intergalactic medium, metal production in stars, and metal ejection via galactic winds.