Past Events

  • 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.

  • High Energy Theory: "TBA"

    David Rittenhouse Laboratory, 2N36

    Joan Simon (Edinburgh)

  • Topology Workshop: “Identifying Order in Complex Systems”

    David Rittenhouse Laboratory, A4

    Joel Hass, University of California - “Metrics on the Space of Shapes, and Applications to Biology”

    Vidit Nanda, University of Pennsylvania  – “A Topological Predictor of Protein Compressibility”

    Corey O'Hern, Yale University  -  “Volumes of the Basins of Attraction for Mechanically Stable Disk Packings”

    Konstantin Mischaikow, Rutgers University – “Towards a Homological Description of Nonlinear Dynamics”



  • Astro Seminar: "The Cosmic Ballet of Black Holes and Gravitational Waves"

    David Rittenhouse Laboratory, A8

    Laura Cadonati (Georgia Tech, Center for Relativistic Astrophysics)

    One hundred years after Einstein's formulation of General Relativity, Advanced LIGO has detected for the first time gravitational waves, ripples in the fabric of spacetime that are produced by cataclysmic astrophysical event. 1.3 billion years ago, two black holes inspiraled and merged, releasing a power that is 50 times that of the visible universe, in the form of gravitational waves, which reached Earth on the morning of September 14, 2015.

  • High Energy Theory: "New Frontiers in Entanglement" Pt. 2

    David Rittenhouse Laboratory, 4N12

    10:30-11am: Welcome coffee

    11am -12:30pm: Herman Verlinde (Princeton) Talk/Presentation

  • ABO Seminars: "Insights Into Hallmarks of Early Carcinogenesis Using Nanoscale-sensing Optical Microscopy"

    Donner Building 3400 Spruce Street Donner Auditorium, Basement *Pizza served at 11:45am*

    Vadim Backman (Northwestern University)

    Initiation of carcinogenesis is accompanied by alterations in tumor microenvironment, cellular metabolism and epigenetics. Understanding these early events depends on our ability to image these subtle nanoarchitectural and functional processes. The talk discusses a suit of novel in vivo and in vitro optical imaging techniques that have recently been developed to quantify intracellular and tissue morphology at the nanoscale and provide high-resolution imaging of metabolism and microangiography.