Events Archive

Events Archive

High Energy Physics Seminar-Kirk McDonald-Princeton

Wed, Mar 14, 2012, 3:00 pm to 4:00 pm
“Search for theta13 from the Daya Bay Reactor Neutrino Experiment”
http://puhep1.princeton.edu/~mcdonald/dayabay/DYB_rate_prl_APS.pdf

Spectroscopy of materials under extreme conditions: evaluating magnetic frustration and spin liquid behavior in rare earth-containing Kagomé systems

Tue, Mar 13, 2012, 4:30 pm to 6:00 pm
In this presentation, I will overview the use of magneto-optical spectroscopy to investigate magnetic frustration and illustrate its use by assessing the spin liquid candidacy of a rare earth Langasite.

Special Condensed Matter Seminar, Chen Fang, “Topological Insulators and Semimetals with Point Group Symmetries”

Tue, Mar 13, 2012, 2:45 pm to Mon, Mar 12, 2012, 4:00 pm
In this talk we will first discuss topological band insulators with crystallographic point group symmetries (PGS), extending the regime of topological phases to include systems beyond those having time-reversal symmetry. In principle, any discrete symmetry gives rise to a topological classification of insulators indexed by quantum numbers...

Special Condensed Matter Seminar, Chen Fang, “Topological Insulators and Semimetals with Point Group Symmetries”

Tue, Mar 13, 2012, 2:45 pm to 4:00 pm
In this talk we will first discuss topological band insulators with crystallographic point group symmetries (PGS), extending the regime of topological phases to include systems beyond those having time-reversal symmetry. In principle, any discrete symmetry gives rise to a topological classification of insulators indexed by quantum numbers...

High Energy Theory Informal Seminar - Mitsutoshi Fujita, Kyoto University - SL(2,R) duality on AdS/BCFT

Tue, Mar 13, 2012, 1:00 pm to 2:00 pm
Abstract: We study the response of a conserved current to external electromagnetic field in a holographic system with boundaries using the recently proposed AdS/BCFT framework. This,in particular, allows us to extract the Hall current. We also analyze the action of SL(2,R)duality.

High Energy Theory Seminar - Barton Zwiebach, MIT - Double Field Theory: Geometry and Applications

Mon, Mar 12, 2012, 2:30 pm to 3:30 pm
Abstract: Double field theory is an approach to make T-duality manifest in low energy Lagrangians by doubling the number of spacetime dimensions. It features an intriguing generalization of Riemannian geometry and may help understand some aspects of string theory effective actions and compactification.

High Energy Theory Seminar - Simon Caron-Huot, IAS - Jet Quenching at RHIC and the LHC

Gravity Group Astrophysics/Cosmology Lunch, "Vector Inflation and the Baryon Asymmetry Problem"

Fri, Mar 9, 2012, 12:00 pm to 1:30 pm
Speaker: Stephon Alexander, Haverford/Princeton Absract:

Physics Colloquium-Holger Mueller, University of California Berkeley

High Energy Theory Seminar - IAS - Kimyeong Lee, Korea Institute for Advanced Study - The Countings in 4,5,6 Dims

Mon, Mar 5, 2012, 2:30 pm to 3:30 pm
We review our recent works on the index calculations related to 4d, 5d, and 6d maximally supersymmetric theories, where we have explored the 't Hooft operators, instantons, and monopole string junctions. In addition, we provide a tentative solution for N-cube puzzle in 6d (2,0) theories.

High Energy Theory Seminar - Yasunori Nomura, Berkeley - Quantum Mechanics, Gravity, and the Multiverse

Fri, Mar 2, 2012, 1:30 pm to 3:00 pm
Abstract: The discovery of the accelerating universe has led to the dramatic new view that our universe may be one of the many universes in which low energy physical laws take different forms: the multiverse. I explain why/how this view is supported both observationally and theoretically, especially by string theory and eternal inflation.

Gravity Group Astrophysics/Cosmology Seminar, "Eccentric black hole-neutron star mergers"

Fri, Mar 2, 2012, 12:00 pm to 1:30 pm

Abstract: There is a high level of interest in black hole-neutron star binaries, not only because their mergers may be detected by gravitational wave observatories in the coming years, but also because of the possibility that they could explain a class of short duration gamma-ray bursts.

Physics Colloquium-Jeffrey McClintock, Harvard

Thu, Mar 1, 2012, 4:30 pm to 6:00 pm
"Measuring the Spins of Black Holes and Applying the Results"

Math Phys Seminar: Christian Hainzl (University of Tuebingen) 'Low Density Limit of BCS Theory and Bose-Einstein Condensation of Fermion Pairs'

Tue, Feb 28, 2012, 3:30 pm to 5:00 pm
We consider the low density limit of a Fermi gas in the BCS approximation. We show that if the interaction potential allows for a two-particle bound state, the system at zero temperature is well approximated by the Gross-Pitaevskii functional, describing a Bose-Einstein condensate of fermion pairs. This is joint work with Robert Seiringer.
...

High Energy Theory Informal Seminar - David Marsh, Cornell University - Wasteland of Random Supergravities

Tue, Feb 28, 2012, 12:30 pm to 2:00 pm
Abstract: I will discuss how in a general N = 1 supergravity with N ≫ 1 scalar fields, an exponentially small fraction of the de Sitter critical points are metastable vacua.

Osamu Tajima, "Road to primordial B-modes -- KEK's strategy for CMB polarization"

Mon, Feb 27, 2012, 4:00 pm to 5:00 pm
ABSTRACT: Precise measurements of cosmic microwave background (CMB) polarization, especially its odd-parity patterns (B-modes) at large angular scale, prove a scenario of inflationary universe. Many experiments are aiming to detect them.

High Energy Theory Seminar - David Shih, Rutgers - Higgs at 125 GeV: A Crisis for Gauge Mediation?

Mon, Feb 27, 2012, 2:30 pm to 3:30 pm
Abstract: Recently, the ATLAS and CMS collaborations have announced exciting hints for a Standard Model-like Higgs boson at a mass of approximately 125 GeV. In this talk, I will discuss the potential consequences for the MSSM and low scale SUSY-breaking. As is well-known, a 125 GeV Higgs implies either extremely heavy stops, or near-maximal stop...

High Energy Theory Seminar - IAS - Tristan Dennen, University of California, Los Angeles - TBA

Astrophysics/Cosmology Journal Club, "The (quantum) field theorist's approach to gravitational dynamics"

Fri, Feb 24, 2012, 12:00 pm to Mon, Feb 20, 2012, 1:30 pm
Speaker: Rafael Porto, IAS

Physics Colloquium-Richard Prum, Yale

Thu, Feb 23, 2012, 4:30 pm to 6:00 pm
Self-Assembly and Evolution of Color Producing Nanostructures of Birds and Insects

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