Events Archive

2019

HET Seminar | Minjae Cho, Harvard University | "Strings in Ramond-Ramond (RR) Backgrounds from the Neveu-Schwarz-Ramond (NSR) Formalism"

Tue, Apr 2, 2019, 3:00 pm

** Please note special time and location **

Speaker(s):

HET Seminar at IAS | Liam McAllister, Cornell University | "The Kreuzer-Skarke Axiverse”

Mon, Apr 1, 2019, 2:30 pm

I will describe a large ensemble of compactifications of type IIB string theory on Calabi-Yau threefold hypersurfaces, obtained by triangulating polytopes from the Kreuzer-Skarke list. We have developed methods to compute effective theories in the previously-inaccessible region with many Kahler moduli that plausibly contains almost all vacua in...

Speaker(s):

Gravity Initiative Lunch, Tracy Slatyer | MIT "A Puzzle in Gamma Rays from the Galactic Center: Pulsars or Dark Matter?"

Mon, Apr 1, 2019, 12:30 pm

Title:  A Puzzle in Gamma Rays from the Galactic Center: Pulsars or Dark Matter?

Please sign up here if you would like to be included in the (free) lunch order: https://goo.gl/forms/GCT1UqQwlz9iGwgU2
 

Biophysics Seminar: Elizabeth Hillman, Columbia University| "High-speed imaging of real-time brain activity"| Joseph Henry Room

Mon, Apr 1, 2019, 12:00 pm

Optical reporters of neural activity have improved dramatically over the past decade. Recent developments in optical imaging approaches have unlocked the power of these indicators and can now provide real-time read-outs from large populations of brain cells in a wide range of living organisms.

Speaker(s):

HET Seminar | Xinan Zhou, Princeton | "AdS_3\times S^3\times K3 four-point functions and hidden symmetry"

Fri, Mar 29, 2019, 1:45 pm

In this talk we revisit the holographic calculation of 1/2-BPS four-point functions from IIB supergravity compactified on AdS_3\times S^3\times K3. I will present evidence that the four-point functions exhibit a hidden 6d conformal symmetry. Using this hidden symmetry, we conjecture a general formula for all 1/2-BPS four-point functions of...

Speaker(s):

HEP Seminar-Luigi Marchese-Oxford-"Higgs Boson Width at the LHC"

Fri, Mar 29, 2019, 11:00 am to 12:00 pm

In the Standard Model the Higgs boson is a very narrow resonance and therefore measuring its width is challenging.

Physics Group Meeting at IAS | Tom Rudelius, Member, School of Natural Sciences, IAS | "Supersymmetry, Self-Force, and the Swampland”

Wed, Mar 27, 2019, 1:45 pm

Motivated by an apparent counterexample to the Weak Gravity Conjecture, I will describe the difference between black hole extremality bounds and BPS bounds and (relatedly) the difference between superextremal particles and self-repulsive particles.

Speaker(s):

HET Seminar | Scott Collier, Harvard University | "Virasoro analytic bootstrap and the bound-state spectrum of 3D quantum gravity"

Mon, Mar 25, 2019, 3:00 pm

* Please note special time and location *

Speaker(s):

Condensed Matter Seminar | Andrey Gromov, Brown University | "Bimetric theory of fractional quantum Hall states" | Jadwin A08

Mon, Mar 25, 2019, 1:15 pm to 2:55 pm

Fractional quantum Hall (FQH) states are topologically ordered. Additionally, FQH states support a collective neutral excitation known as the Girvin-MacDonald-Platzman (GMP) mode. Certain features of this mode are independent of the microscopic details.

Speaker(s):

Gravity Initiative Lunch, Juan Calderon Bustillo | Monash "Looking at strong field phenomena using multi-mode gravitational wave observations"

Mon, Mar 25, 2019, 12:30 pm

"Looking at strong field phenomena using multi-mode gravitational wave observations"

Biophysics Seminar: Benny Chain, University College London| "The T cell receptor repertoire in health and disease"| Joseph Henry Room

Mon, Mar 25, 2019, 12:00 pm

The human adaptive immune system makes robust decisions which regulate quantitative and qualitative parameters of a complex physiological system, to prevent invasion and destruction of tissues by the enormous array of microorganisms which share our environment.

Audience: A free lecture open to the public.
Speaker(s):

HET Seminar at IAS | Douglas Stanford, Member, School of Natural Sciences, IAS | “Nonperturbative and Doubly-nonperturbative Effects in JT Gravity”

Fri, Mar 22, 2019, 1:45 pm

I will discuss the contribution of higher-genus surfaces in JT gravity. In work with Saad and Shenker, we use Mirzakhani's recursion and work of Eynard and Orantin to show that these contributions exactly coincide with the genus expansion of a particular double-scaled matrix integral.

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Physics Group Meeting at IAS | Douglas Stanford, Member, School of Natural Sciences, IAS | “Aspects of One-matrix Integrals”

Wed, Mar 20, 2019, 1:45 pm

I will review the perturbative (genus) expansion of one-matrix integrals via the loop equations, and the streamlined version due to Eynard. I will review double-scaled matrix integrals and discuss a heuristic method for computing some nonperturbative effects. For a thorough modern discussion of the loop equations and the connection to "...

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HET Seminar at IAS | Mihalis Dafermos, Princeton University | “The Interior of Dynamic Vacuum Black Holes and the Strong Cosmic Censorship Conjecture in General Relativity”

Mon, Mar 18, 2019, 2:30 pm
Speaker(s):

FPO - Guannan Liu - "The mechanical basis of Myxococcus xanthus self-organization and motility: from single cells to collective behavior"

ACT F2F Meeting 2019 | Jadwin A06 (A level)

Mon, Mar 18, 2019, 8:30 am to Tue, Mar 19, 2019, 5:30 pm

Where: Princeton, NJ | Jadwin Hall, Room A-06
When: March 18-20 (M-W) with most talks btwn Monday 9am and Tuesday noon, followed by hackathon on Tues pm and Wed.

Gravity Group Lunch Seminar, Xue (Sherry) Song and Joseph van der List | Princeton

Fri, Mar 15, 2019, 12:00 pm

Xue (Sherry) Song and Joseph van der List will lead our first journal club discussion of the academic year.

Hamilton Colloquium Series, Shinsei Ryu, University of Chicago, "Topology, Entanglement, and Time-Reversal Symmetry in Quantum Many-Body Physics"

Thu, Mar 14, 2019, 4:00 pm

Time-reversal symmetry is one of fundamental symmetries that can present in many quantum mechanical systems. It plays an important role in many-body quantum systems, as demonstrated, for example, in the physics of topological insulators. In this talk, I will discuss topology and quantum entanglement protected and detected by time-reversal...

Audience: A free lecture open to the public.
Speaker(s):

HEP Seminar-Marcelo Vicente-"CMS Phase-2 Calorimeter Trigger Hardware Upgrades"

Thu, Mar 14, 2019, 2:00 pm to 3:00 pm

Technical presentation of the planned hardware upgrades for the CMS backend Calorimeter Trigger during Phase-2 that are being developed at the University of Wisconsin-Madison.

The current state of electronics will be presented and several of the key technical decisions during design specification will be discussed.

Speaker(s):

HEP Seminar-Marcelo Vicente-"CMS Phase-2 Calorimeter Trigger Hardware Upgrades"

Thu, Mar 14, 2019, 2:00 pm to 3:00 pm

Technical presentation of the planned hardware upgrades for the CMS backend Calorimeter Trigger during Phase-2 that are being developed at the University of Wisconsin-Madison.

The current state of electronics will be presented and several of the key technical decisions during design specification will be discussed.

Speaker(s):

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