Events

  • Astro Seminar: "Cross Correlations with CMB Secondaries: Constraining Cosmological Parameters and Cluster Astrophysics"

    David Rittenhouse Laboratory, A4

    Nicholas Battaglia (Princeton)

    High resolution CMB experiments, such as ACT, SPT, and the Planck satellite are making precision measurements of the secondary anisotropies caused by the thermal Sunyaev Zel'dovich (tSZ) effect from galaxy clusters. However, our ability to obtain cosmological information from this tSZ signal is limited by our theoretical understanding of the baryons in clusters and groups. I will discuss how cross-correlation methods are providing new windows into the messy Gastrophysics of the intracluster medium and the potential for these methods to constrain various cosmological parameters.

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  • Condensed Matter seminar: "Valley and spin dependent physics in two-dimensional van der Waals’ materials"

    David Rittenhouse Laboratory, A4

    Kin Fai Mak, Pennsylvania State University

    Electrons in two-dimensional (2D) van der Waals’ materials with a honeycomb lattice structure possess both the valley pseudospin and the spin degree of freedom (DOF). The valley DOF is associated with the degenerate conduction/valence band extrema at the K and the K’ point of the Brillouin zone. When inversion symmetry is broken, interesting valley and spin dependent phenomena, such as spin-valley locking and the valley Hall effect (VHE), emerge.

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  • Special Energy Cluster Seminar: "Tailoring the flow of light at the nanoscale with hyperbolic metasurfaces"

    Glandt Forum, 3rd Floor, Singh Center

    Alexander High, Harvard University

    Metamaterials offer unprecedented control of the flow of light at nanoscale dimensions, critical for the realization of compact, energy-efficient optical computing. However, three-dimensional (3D) metamaterials suffer from extreme optical losses, limiting their practical utility. Two-dimensional (2D) metasurfaces and, in particular, hyperbolic metasurfaces (HMSs) for propagating surface plasmon polaritons have been predicted to feature much lower loss while still exhibiting optical phenomena akin to those in 3D metamaterials.

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  • Department Colloquium: "Physics Opportunities at Future Circular Colliders"

    DRL A8

    Liantao Wang (U of Chicago) Hosted by Joe Kroll

    Following the discovery of the Higgs boson, there has been a lot discussion about the next step in high energy physics. Among different options, a couple of newly proposed next generation circular colliders, including FCC at CERN and CEPC/SPPC in China, have attracted a lot of attention. Through preliminary studies in the past couple of years, an exciting picture of their physics capabilities has emerged. In this talk, I will give an overview on this topic, focusing on some of the most important questions in high energy physics they can help addressing. 

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  • Astro Seminar: "TBA"

    David Rittenhouse Laboratory, A4

    Eli Visbal (Columbia)

  • Condensed Matter seminar

    David Rittenhouse Laboratory, A4

    Peter Olmsted, Georgetown University

  • ABO Seminars: "TBA"

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

    David Mankoff (Hospital of UPenn)

  • Astro Seminar: "TBA"

    David Rittenhouse Laboratory, A4

    Alyson Brooks (Rutgers)

  • Condensed Matter seminar

    David Rittenhouse Laboratory, A4

    Na Ji, Janelia Research Campus

  • Department Colloquium: TBA

    David Rittenhouse Laboratory, A8

    William Jones (Princeton) Hosted by Mark Devlin

    *Refreshments served @ 3:30pm, DRL 2nd Floor Faculty Lounge*

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