# Events Archive

## Events Archive

### Gravity Group Astrophysics|Cosmology Lunch

### High Energy Theory Seminar - IAS - Rutger Boels, DESY - “New Applications of the Analytic S-matrix in String Theory”

Mon, May 7, 2012, 2:30 pm to 3:30 pm

The central drive of the analytic S-matrix program is to determine scattering amplitudes in any given theory from symmetries and analytic properties. This program led for instance to the birth of string theory with Veneziano's amplitude. Many recent developments in four dimensional field theory are closely related to this program.

### Condensed Matter Seminar, Gregory A. Fiete, "Interacting topological insulators in oxides"

Mon, May 7, 2012, 1:15 pm to 2:30 pm

Topological phases of matter have received intense interest over the past few years due to the experimental discovery of time-reversal invariant topological insulators (TI) in two and three dimensions.

### High Energy Theory Seminar - IAS - Jonathan Heckman, IAS

### Gravity Group Astrophysics Cosmology Lunch, "Black holes get loud and bright"

Fri, May 4, 2012, 12:45 pm to 1:45 pm

### Colloquium:Whistles & Thumps: Listening to the Transient Gravitational Wave Universe - Bernard Schutz - Max Planck

Thu, May 3, 2012, 4:30 pm to 6:00 pm

By 2016 there is a good chance that the Advanced LIGO and VIRGO gravitational wave (GW) detectors, now in their final hardware upgrade phase, will have made the first direct detection of GWs, and regular detections will follow soon afterwards.

### PPPL COLLOQUIUM: A Slightly Longer History of E=mc2, Or How I Came to Hate 4/3

Wed, May 2, 2012, 4:00 pm to 6:00 pm

According to popular mythology, the equivalence of mass and energy was suddenly conceived of and proven by Einstein in 1905. In fact, serious attempts to connect mass and energy went back at least to J.J. Thomson in 1881 and over the next two decades became the subject of numerous investigations by Maxwellians such as Heaviside, Abraham and...

### High Energy Theory Seminar - Hsin-Chia Cheng, University of California - Kinematic Variables for Events with Missing Particles

Mon, Apr 30, 2012, 2:30 pm to 3:30 pm

Events with missing energies provide important channels for new physics searches at colliders. They appear in many new physics models with a dark matter candidate. I will give a more systematic discussion of the kinematic variables which are designed for individual event topologies of signals or backgrounds.

### Gravity Group Special Seminar, "Early Science from the Jansky Very Large Array"

Mon, Apr 30, 2012, 12:45 pm to 1:45 pm

Speaker: Dale Frail, Assistant Director NRAO

### Biophysics Seminar Series - Erel Levine, Harvard - "How to worm infection dynamics out of worms?"

Mon, Apr 30, 2012, 12:00 pm to 1:00 pm

Bacterial infection is characterized by a multi-scale noisy dynamics with unpredictable outcome. In my talk I introduce bacterial infection of the worm intestine as a minimal tractable model of bacterial infection. I discuss how this model could be used to address key questions in the field, and suggest experimental and theoretical approaches to...

### Condensed Matter Seminar, Leo Kouwenhoven, " Majorana Fermions in Semiconductor Nanowires"

Fri, Apr 27, 2012, 1:00 pm to 3:00 pm

Majorana fermions can arise as emergent particles in specially designed nanoscale conductors. We have combined superconductors and semiconducting nanowires with strong spin-orbit interaction. At finite magnetic field we find peaks in the density-of-states at zero-bias. The properties of this zero-bias peak compare well with the predictions for...

### Gravity Group Astrophysics/Cosmology Lunch

Fri, Apr 27, 2012, 12:00 pm to 1:30 pm

### Colloquium: Energy: Technology, Economics, Policy, Informatics - Steve Koonin - Institute for Defense Analysis

Thu, Apr 26, 2012, 4:30 pm to 5:30 pm

National and global energy challenges involve security, competitiveness, and reduction in environmental impacts. Yet structural factors in energy systems retard the pace of energy change. I will discuss the technology, policy, and economic levers that can be used to accelerate the pact of energy transformation

### Informal High Energy Theory Seminar - IAS - Alessandro Strumia, University of Pisa - “Unificaxion”

Thu, Apr 26, 2012, 1:30 pm to 2:30 pm

### Condensed Matter Seminar, Karyn Le Hur, " Many-Bodied Quantum Physics with Photons"

Tue, Apr 24, 2012, 2:00 pm to 3:30 pm

In this Talk, we survey recent theoretical studies concerning the realization of many-body quantum physics with photons. First we introduce the Jaynes-Cummings lattice model and discuss the emergent Mott-Superfluid transition of light in electromagnetic resonator arrays which are under experimental investigation at Princeton in the group of Andrew...

### High Energy Theory Seminar - IAS - Carlo Rovelli, Aix-Marseille University, France - Loop quantum Gravity: Recent Results and Open Problems

Mon, Apr 23, 2012, 2:30 pm to 3:30 pm

Description: The loop approach to quantum gravity has developed considerably during thelast few years, especially in its covariant ('spinfoam') version. Ipresent thecurrent definition of the theory and the results that have beenproven.

### Condensed Matter Seminar, Garnet Chan, Numerical approaches to correlated electrons"

Mon, Apr 23, 2012, 1:15 pm to 2:45 pm

I will describe current research in our group to develop numerical methods for correlated electrons in systems of interest to chemistry and physics.

### Biophysics Seminar Series - Richard Neher (Max Planck Institute)

Mon, Apr 23, 2012, 12:00 pm to 1:00 pm

Recombination in intra-patient evolution of HIV

Talk starts at 12:00. Lunch is at 11:45.

Talk starts at 12:00. Lunch is at 11:45.

### PHY-MAT-ASTRO Joint Open House

Fri, Apr 20, 2012, 3:30 pm to Fri, Apr 27, 2012, 5:00 pm

April 20th and 27th, 3:30-5pm