Events Archive

Events Archive

Condensed Matter/High Energy Theory Seminar - Zhengcheng Gu, KITP - Duality between symmetry protected topological order & intrinsic topological order

Tue, Feb 21, 2012, 1:30 pm to 3:00 pm
Symmetry protected topological(SPT) phase is a generalization of topological insulator(TI). Different from the intrinsic topological phase, e.g., the fractional quantum hall(FQH) phase, SPT phase is only distinguishable from a trivial disordered phase when certain symmetry is preserved.

High Energy Theory Seminar - Kurt Hinterbichler, University of Pennsylvania - "New developments in massive gravity"

Fri, Feb 17, 2012, 1:30 pm to 2:30 pm
The idea that the graviton may be massive has seen a resurgence of interest due to recent progress which has overcome its traditional problems.

Gravity Group Astrophysics/Cosmology Lunch "Topics in gravity/cosmology, Part 2"

Fri, Feb 17, 2012, 12:00 pm to 1:30 pm
To kick off the semester, we will have a series of short (<= 20 min) talks from local postdocs from the Physics and Astronomy departments, the PCTS, and the IAS working on gravity/cosmology-related topics.
cut off time for ordering your hoagie 9:30am Friday ***NEW TIME***

Physics Colloquium-Michael Brenner, Harvard

AMO Seminar - Iannis Kominis, local visitor from the University of Crete - A Bird's Eye View of Spin Coherence

Tue, Feb 14, 2012, 2:00 pm to 3:00 pm
Radical-ion pair reactions play a fundamental role in photosynthesis and are also understood to underlie the avian magnetic compass mechanism. It was recently shown that these biochemical reactions exhibit a host of quantum coherence phenomena, thus providing a promising and very exciting

High Energy Theory Seminar - Alejandra Castro, McGill University - The gravity dual of the Ising model

Mon, Feb 13, 2012, 2:30 pm to 3:30 pm
Abstract: The AdS/CFT correspondence provides a non-perturbative formulation of quantum gravity, and in particular it provides a precise definition of a gravitational path integral. Applying the duality to solvable CFTs could give insight to the nature of holography and clarify other puzzles in quantum gravity.

Condensed Matter Seminar, Leo Kadanoff, "Numerical Renormalization Methods"

High Energy Theory Seminar - IAS - Nima Arkani-Hamed - TBA

Gravity Group Astrophysics/Cosmology Lunch, Topics in gravity/cosmology

Fri, Feb 10, 2012, 12:00 pm to 1:30 pm
To kick off the semester, we will have a series of short (<= 20 min) talks from local postdocs from the Physics and Astronomy departments, the PCTS, and the IAS working on gravity/cosmology-related topics.
for ordering your hoagie -- cutoff: 9:30am Friday ***NEW TIME***

Hamilton Lecture-Leo Kadanoff

Thu, Feb 9, 2012, 8:00 pm to 10:00 pm
"Making a Splash, Breaking a Neck: The Development of Complexity in Physical Systems

AMO Seminar - Wes Campbell, University of Maryland - Quantum information science with cold ions and molecules

Thu, Feb 9, 2012, 1:30 pm to 3:00 pm
We use a collection of trapped atomic ions as a platform for the analog quantum simulation of lattice spin models. By applying spin-dependent optical dipole forces to an ion crystal, a long-range effective spin-spin interaction arises that allows the simulation of spin Hamiltonians that possess nontrivial order in their ground state.

Math Phys Seminar: Jonathan Breuer (Hebrew University) 'Nonintersecting random walkers with a staircase initial condition'

Tue, Feb 7, 2012, 4:30 pm to 6:00 pm
We study a model of one dimensional particles, performing geometrically weighted random walks that are conditioned not to intersect. The walkers start at equidistant points and end at consecutive integers. A naturally associated tiling model can be viewed as one of placing boxes on a staircase.

Informal High Energy Theory Seminar - IAS - Bogdan Stefanski, City University London

High Energy Theory Seminar - IAS - Razvan Gurau, Perimeter Institute - The Large N Limit of Tensor Models

Mon, Feb 6, 2012, 3:00 pm to 4:30 pm
Matrix models yield a theory of random two dimensional surfaces. They support a 1/N expansion dominated by planar graphs (corresponding to planar surfaces) and undergo a phase transition to a continuum theory. In higher dimensions matrix models generalize to tensor models. In the absence of a viable 1/N expansion tensor models

Condensed Matter Seminar, Leo Kadanoff, "Are Renormalization Methods "Really Ugly"?"

High Energy Theory Seminar - Jonathan Heckman - IAS - Connecting Strings to Things

Tue, Jan 31, 2012, 1:30 pm to 3:00 pm
In this talk I describe some of the recent progress made in embedding the Standard Model of particle physics in a theory of open strings.

High Energy Theory Seminar - Simone Giombi - Perimeter Institute - Higher spin theories and holography

Tue, Jan 24, 2012, 1:30 pm to 3:00 pm
Abstract: I will overview recent progress in testing the holographic duality between 3d vector models and higher spin gravity theories in four-dimensional Anti-de Sitter space. I will also discuss some new results on the CFT obtained by coupling 3d vector models to a Chern-Simons gauge field. In particular, I will show that such theory has a...

AMO Seminar - Monika Schleier-Smith - A Squeezed Atomic Clock Enabled by Cavity Feedback - Quantum Many-Body Systems Division LMU Munich

Mon, Jan 23, 2012, 2:00 pm to 3:30 pm
Over a decade ago, the stability of atomic clocks reached the standard quantum limit, set by the projection noise inherent in measurements on an ensemble of uncorrelated particles.

AMO Seminar - Building Synthetic Materials from Ultracold Atoms: Quantum Magnetism in an Optical Lattice - Jonathan Simon - Harvard/MIT

Thu, Jan 19, 2012, 1:30 pm to 3:00 pm
Ultracold atoms in optical lattices form a unique testbed for quantum many-body physics. Using such systems it has recently become possible to engineer strongly-correlated materials from the ground up and probe them with single-atom resolution.

CMP Seminar - Tianheng Han - MIT - The Search For Quantum Spin Liquids

Thu, Jan 12, 2012, 3:15 pm to 4:15 pm
The experimental realization of a quantum spin liquid ground state in two-dimensions-a new form of matter with no conventional broken symmetry-has been under intensive investigations for decades. Recently, this novel state has likely been discovered.