Events Archive

2014

High Energy Theory Seminar- IAS - Herman Verlinde, Princeton University, “Conformal Field Theory and Quantized Space-Time”

Hamilton Colloquium Series - Stanislas Leibler, The Rockefeller University, and IAS: "Ethology and Ecology of Simple Microbial Systems"

Thu, Feb 27, 2014, 4:30 pm to 6:00 pm
I will describe two recent experiments on simple microbial systems. In particular, in these experiments an effort has been made to develop a statistical description of the dynamics on different time scales, ranging from minutes to months.

Math Physics Seminar, Jakob Yngvason, Quantum Hall Phases, plasma analogy and incompressibility estimates"

Tue, Feb 25, 2014, 4:30 pm to 5:30 pm
When a 2D many-particle system with a repulsive interaction is subject to a suff iciently strong magnetic field, that can also be produced by rapid rotation, str ongly correlated many-body states in the lowest Landau level LLL may emerge.

Special Condensed Matter Seminar, Dan Dessau, Electronic Interactions in Cuprate High-Temperature Superconductors – an ARPES study

Tue, Feb 25, 2014, 1:15 pm to 2:30 pm
Using high resolution ARPES we analyze the electronic scattering rates of cuprate superconductors as a function of temperature, energy, and doping.

High Energy Theory Seminar- IAS - Rachel Rosen, Columbia University - “Massive Gravity: A Status Report”

Biophysics Seminar Series - Madhav Mani (Kavli Institute for Theoretical Physics)

Mon, Feb 24, 2014, 12:00 pm to 1:00 pm
"A Physical Approach to Organismal Development"

High Energy Theory Seminar - Ansoon Hook, IAS - "New self dualities and duality cascades"

Fri, Feb 21, 2014, 1:30 pm to 2:30 pm
New self-dualities involving two index tensors are derived. These new self-dualities are used to build various duality cascades. Both vector like and chiral cascades are presented. Aside from ending in confinement, these duality cascades can also end in interacting conformal field theories, free field theories, and meta-stable supersymmetry...

Hamilton Colloquium Series - Jun Ye, University of Colorado: "Ultracold Molecules - New Frontiers in Quantum and Chemical Physics"

Thu, Feb 20, 2014, 4:30 pm to 6:00 pm

Molecules cooled to ultralow temperatures provide fundamental new insights to molecular interaction dynamics in the quantum regime.

Math Physics Seminar, Eric Carlen, "Remainder terms for some entropy inequalities and entanglement for fermions"

Tue, Feb 18, 2014, 4:30 pm to 5:30 pm
A number of entropy inequalities have proved useful for quantifying the degree of entanglement of bipartite (or multipartite) quantum states.

SPECIAL Condensed Matter Seminar, Enam Chowdhury, "Understanding strong field laser solid interaction with few cycle femtosecond pulses"

Tue, Feb 18, 2014, 2:00 pm to 3:00 pm
As femtosecond laser interacts with matter in fundamentally different ways than how continuous wave (CW) or nano-second laser interacts, it gives rise to many interesting phenomena which may open doors for exciting future applications, like plasmon coupled high harmonic generation [Park 2011] nano-electronics [Chimmalgi 2005], etc.

Special Seminar - Quantum phase transitions in 2d metals: non-Fermi-liquid behavior and superconductivity, Max Metlitski, Kavil Institute, USCB

Tue, Feb 18, 2014, 9:30 am to 10:30 am
: A central question of modern condensed matter physics is how can our standard description of metals, the Landau Fermi-liquid theory, breakdown. In this light, quantum phase transitions associated with onset of order in metals have attracted much interest.

Special Seminar - The Dark Energy Survey early science and perspectives, Marcelle-Soare-Santos, Fermi Lab

Mon, Feb 17, 2014, 4:00 pm to 5:00 pm
The Dark Energy Survey (DES) Collaboration has started a 5000 square degree imaging survey of the southern galactic cap using a new 3 sq. deg., 520 Megapixel CCD camera, the Dark Energy Camera (DECam), mounted on the Blanco 4-meter telescope at the Cerro-Tololo Inter-American Observatory in Chile. DECam has achieved first-light in September 2012.

High Energy Theory Seminar - Matthew Headrick, Brandeis University - "Causality, holography, and entanglement entropy"

Mon, Feb 17, 2014, 2:30 pm to 3:30 pm
The covariant holographic entanglement entropy formula expresses the entropy of a given region in terms of the area of a certain spacelike surface in the bulk. In holographic models of thermalization involving gravitational collapse, it has been observed that this extremal surface probes the region behind the event horizon.

Condensed Matter Seminar, Leonid Glazman, "Helical edge resistance introduced by charge puddles"

Mon, Feb 17, 2014, 1:15 pm to 2:30 pm
Electron puddles created by doping of a 2D topological insulator may violate the ideal helical edge conductance. Because of a long electron dwelling time, even a single puddle may lead to a significant inelastic backscattering. We find the resulting correction to the perfect edge conductance.

Biophysics Seminar Series - David Biron (U.Chicago) "Worm sleep: a universal behavior meets a simple model system"

Mon, Feb 17, 2014, 12:00 pm to 1:00 pm
All animals sleep, or do they? This question remains controversial. If sleep is truly universal to the animal kingdom then even the simplest animal should sleep, and may offer valuable clues regarding the origin and core function of sleep (or perhaps provide insight by being an exception to the rule).

Hamilton Colloquium Series - Gabriel Orebi Gann, UC-Berkeley: "Here Be Dragons: Mysteries of the Neutrino" - Updated

Fri, Feb 14, 2014, 12:00 pm to 1:00 pm

Neutrinos are one of the most fascinating particles that occur in nature: hundreds of millions of times smaller than the proton, the neutrino was once thought to be massless and to travel at the speed of light.

Math Physics Seminar, Juerg Froehlich, "Physical Principles Underlying the Fractional Quantum Hall Effect"

Tue, Feb 11, 2014, 4:30 pm to 5:30 pm
I review an approach to the theory of the Quantum Hall Effect (QHE) somewhat analogous to Landau's theory of phase transitions. After a short recapitulation of some of the discoveries leading to the QHE, I describe some of the main experimental facts and data and speculate about possible applications.

High Energy Theory Seminar- IAS - Joel Giedt, Rensselaer Polytechnic Institute - “Lattice N=4 Super-Yang-Mills”

Mon, Feb 10, 2014, 2:30 pm to 3:30 pm
I will review a lattice gauge theory construction of N=4 super-Yang-Mills that has been developed over the last several years. It starts from a "twist" of the original N=4 theory which was explicitly written out by Marcus.

Condensed Matter Seminar, Dale Van Harlingen, “Transport and Josephson phenomena in hybrid superconductor-topological insulator devices”

Mon, Feb 10, 2014, 1:15 pm to 2:30 pm
We are studying the transport properties of hybrid S-TI-S devices fabricated by depositing superconductor electrodes onto topological insulators. In top-gated Nb-Bi2Se3-Nb junctions, we have measured the Josephson supercurrent and conductance as a function of geometry, temperature, and gate voltage in order to determine the nature of the charge...

Biophysics Seminar Series - Ila Fiete (University of Texas)

Mon, Feb 10, 2014, 12:00 pm to 1:00 pm
“Codes and mechanisms for representation and persistent activity in the noisy brain”
Lunch will be served at 11:45, talk begins at 12:00.
Audience: PHysics/Biophysics faculty, post docs, grad students

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