Events Archive

2014

Biophysics Seminar Jose Feijo, UMD "How cells coordinate growth and shape: unravelling the complexity of ion signaling in pollen tubes "

Mon, Nov 10, 2014, 12:00 pm to 1:00 pm
Pollen transcriptomics revealed the expression of of about 7.000 genes in pollen, but theoretical modelling suggests that the cooperation of all of these into the processes of wall surface and cytoplasmic volume production is a minimal condition to explain most of the morphogenic events that characterize these cells.

Particle Physics Seminar, Yanou Cui, U of Maryland, "Detecting Boosted Dark Matter"

Fri, Nov 7, 2014, 4:00 pm to 5:00 pm
We initiate the study of novel thermal dark matter (DM) scenarios where the DM annihilation today produces boosted stable particles in the dark sector, which can be a subdominant DM component.

Gravity Group Lunch Seminar, Justin Khoury, "An Alternative to Particle Dark Matter"

Hamilton Colloquium Series - Slava Rychkov, CERN, and ENS-Paris, “Non-Hamiltonian approach to conformal quantum field theory – 40 years later”

Thu, Nov 6, 2014, 4:30 pm to 6:00 pm

Most takes on quantum field theory start from microscopics, fundamental degrees of freedom, a Lagrangian. Conformal field theory is an exception—it focuses on the algebra of local operators and avoids any reference to the Lagrangian. This leads to a method for doing practical CFT calculations—the conformal bootstrap.

Informal HET Seminar - IAS -Jonathan Toledo, Perimeter Institute - "TBA for Minimal Surfaces in AdS from the Continuum Limit of Null Polygons”

Tue, Nov 4, 2014, 1:30 pm to 2:30 pm
We present integral equations for the area of minimal surfaces in AdS_3 ending on generic smooth boundary contours. The equations are derived from the continuum limit of the AMSV result for null polygonal boundary contours. Remarkably these continuum equations admit exact solutions in some special cases.

High Energy Theory Seminar- Emanuel Katz, Boston U. - "Effective conformal dominance and a new approach to solving a field theory"

Mon, Nov 3, 2014, 2:30 pm to 3:30 pm
I will consider the case of a CFT deformed by a relevant perturbation resulting in a mass gap. I will argue that in such a case, operators of high scaling-dimension can decouple exponentially quickly from low-energy bound states. This observation motivates a new way of solving strongly coupled theories using a conformal basis on the light-cone.

High Energy Theory Seminar- IAS - Steve Adler, IAS - “SU(8) Family Unification with Boson-fermion Balance”

High Energy Theory Seminar- IAS - Andrew Strominger, Harvard University, “Semiclassical Virasoro Symmetry of the Quantum Gravity S-Matrix”

Condensed Matter Seminar, Patrick Lee, MIT, TBA

Mon, Oct 27, 2014, 1:15 pm to 2:30 pm
TBA

NSF Site Visit for Advanced ACT (AdvACT), Room 202

Mon, Oct 27, 2014, 9:30 am to 6:00 pm
Chairman's Conference Room 202 - 2nd Floor

Gravity Group Lunch Seminar, Neil Turok "On Measures and Bounces"

Fri, Oct 24, 2014, 12:15 pm to 2:15 pm

Gravity Group Lunch Seminar joint with String Cosmology and Inflation workshop Speaker: Neil Turok — TBA 1:15—2.15 p.m. PCTS Seminar Room Note: Lunch starts at 12.15pm. Sign-up for lunch and talk is required by Oct 20, 4pm

http://www.princeton.edu/cosmology/gravity-...

“Quantum Universe” Professor Viatcheslav Mukhanov, Arnold Sommerfeld Center for Theoretical Physics

Thu, Oct 23, 2014, 8:00 pm to 9:00 pm
Abstract: Why are atoms stable? What caused galaxies, stars and planets to form? I will explain why quantum physics is crucial for explaining both. Finally, I will discuss the experimental evidence that assures us that everything in our universe originated from quantum fluctuations.

High Energy Theory Seminar- Shira Chapman, Tel Aviv University - "Lifshitz Field Theories, Anomalies and Hydrodynamics"

Thu, Oct 23, 2014, 3:00 pm to 4:00 pm
I will review various aspects of field theories that obey a Lifshitz scaling symmetry. I will detail our study of the cohomological structure of anisotropic Weyl anomalies (the equivalent of trace anomalies in relativistic scale invariant field theories).

High Energy Theory Seminar- Eric Perlmutter, Princeton University - "Simple Structure of CFT Renyi Entropy"

Mon, Oct 20, 2014, 2:30 pm to 3:30 pm
We present new results for Renyi entropy in CFT ground states. In particular, we describe advances in computation across non-spherical entangling surfaces and for generic Renyi index, applicable to arbitrary CFTs. These include the first rigorous computations of Renyi entropy across non-spherical entangling surfaces in strongly coupled 4d and 6d...

Biophysics Seminar - Denis Wirtz (Johns Hopkins U.) "Cell migration in 3D"

High Energy Theory Seminar- IAS - Nathan Seiberg, IAS - “Generalized Global Symmetries”

Gravity Group Lunch Seminar: Raphael Flauger, "From the CMB to fundamental physics - A closer look at n_s and r''

Hamilton Colloquium Series - Michael Gordin, Dept. of History, Princeton, “Einstein in Bohemia: Not-So-General Relativity, 1911-1912”

Thu, Oct 16, 2014, 4:30 pm to 6:00 pm

In the spring of 1911, Albert Einstein moved from Zurich to the German University in Prague, taking up his first appointment as a full professor. Heavily on his mind was a project to extend the special theory of relativity (1905) to a general theory of relativity, building from his 1907 inspiration on the equivalence of inertial and...

Math Physics Seminar, John Inbrie, "A rigorous result on many-body localization "

Tue, Oct 14, 2014, 4:30 pm to 6:00 pm
A one-dimensional spin chain with random interactions exhibits many-body localization. I will discuss a proof under a physically reasonable assumption that limits the amount of level attraction in the system.

High Energy Theory Seminar- IAS - Greg Moore, Rutgers, The State University of New Jersey, TBA

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