# Events Archive

## Events Archive

### Atomic Physics Seminar - Morgan Hedges, University of Calgary - "Progress Toward Ultra-Long Coherence Times for Rare-earth Ion Quantum Memory"

Fri, Oct 19, 2012, 12:30 pm to 1:30 pm

Rare-earth ions in the solid state are a prime candidate for quantum
memory and other quantum information applications, due to their strongly
shielded optical transitions. These same optical transitions allow for
direct optical manipulation of nuclear-spin transitions. This is of
interest for studying interactions in solids, as well as for long-...

### Physics Colloquium - Prof. Ian Spielman, NIST & University of Maryland: "Bose-Einstein condensates subject to synthetic gauge fields"

Thu, Oct 18, 2012, 4:30 pm to 5:30 pm

Abstract: I will present our experimental work on Bose-Einstein condensates, systems of ultra-cold charge neutral atoms at a temperature of about 100 nano-Kelvin: one billion times colder than room temperature.

### Condensed Matter Seminar - Shuichi Murakami, Tokyo Institute of Technology - " Topological magnon transport in ferromagnets"

Tue, Oct 16, 2012, 3:00 pm to 4:30 pm

Magnons (spin waves) are low-energy excitations in magnets. We theoretically study effects caused by Berry curvature due to magnon band structure in ferromagnetic insulators, in analogy with anomalous Hall and spin Hall effect for electrons.

### High Energy Theory Informal Seminar - Daniele Dorigoni, Cambridge U.K. - "The Large-N Limit of 3d Super YM and Bosonization"

Tue, Oct 16, 2012, 1:30 pm to 2:30 pm

In the large N limit, gauge theories compactified on $R^{d-k} \times (S^1)^k$ are independent of the $S^1$ radii, provided that center symmetry remains unbroken. Volume independence holds for arbitrary circle size L, therefore we can match a set of correlation functions in the theory on $R^d$ to the corresponding observables in the reduced $R^{d-k...

### High Energy Theory Seminar - IAS - David Morrison, Univ. of CA, Santa Barbara - “Two-Sphere Partition Functions and Gromov-Witten Invariants”

Mon, Oct 15, 2012, 2:30 pm to 3:30 pm

### Biophysics Seminar Series - Sharad Ramanathan, Harvard

Mon, Oct 15, 2012, 11:45 am to 1:00 pm

Using order parameters to disentangle biological networks that control decisions

### High Energy Theory Seminar - Alexander Polyakov, Princeton University - "Quantum instabilities of the de Sitter space"

Fri, Oct 12, 2012, 1:30 pm to 2:30 pm

### Physics Colloquium - Collective pattern formation and group behaviors from molecules to populations

Thu, Oct 11, 2012, 4:30 pm to 5:30 pm

Abstract: From wildebeest herds to biological molecules and every scale in between, how individuals self-assemble into large, spatially complex groups is a key problem in understanding collective behavior, development, multicellularity, and cellular function.

### High Energy Theory Seminar - IAS - Leonardo Rasteli, SUNY at Stony Brook - TBA

Mon, Oct 8, 2012, 2:30 pm to 3:30 pm

### Condensed Matter Seminar - Prof. Tomi Ohtsuki, Sophia University Tokyo, Japan "Simulating Anderson Localization"

Mon, Oct 8, 2012, 1:15 pm to 2:30 pm

While Anderson localization was predicted more than half a century ago,
it remains an active research topic, not only in condensed matter physics, but also
in cold atom physics as well as in optical physics. Anderson localization
is classified in 10 symmetry classes, according to the basic symmetry of
the system such as time reversal symmetry and...

### Biophysics Seminar Series: Chao Tang, Peking University and UCSF

Mon, Oct 8, 2012, 11:45 am to 1:00 pm

### High Energy Theory Seminar - IAS - David Skinner, Perimeter Institute/IAS - “Gravity from Rational Curves”

Fri, Oct 5, 2012, 1:30 pm to 2:30 pm

### Physics Colloquium: A Little Big Bang: Strong Interactions in Ultracold Fermi Gases - Martin Zwierlien - MIT

Thu, Oct 4, 2012, 4:30 pm to 5:30 pm

Fermions, particles with half-integer spin such as electrons, protons and neutrons, are the building blocks of matter. When fermions strongly interact, complex behavior emerges that is often difficult to understand theoretically, for example in high-temperature superconductors, neutron stars or the quark-gluon plasma of the early universe.

### Particle & Nuclear Astrophysics Seminar - Marco Giammarchi - Instituto Nazionale di Fisica Nucleare, Milan

Mon, Oct 1, 2012, 4:30 pm to 5:30 pm

"Properties of Antimatter studied at the CERN Antiproton Decelerator"

### High Energy Theory Seminar - Ran Yacoby - Weizmann Institute of Science - On Chern-Simons Vector Models and Three Dimensional Bosonization

Mon, Oct 1, 2012, 2:30 pm to 3:30 pm

I will review the recent progress in the study of three dimensional U(N)_k Chern-Simons theories coupled to a massless boson or fermion in the fundamental representation. In particular, in the planar limit, one can determine the conformal fixed points and spectrum of local primary operators of these theories.

### High Energy Theory Seminar -

### High Energy Theory Seminar - Katherine Zurek, University of Michigan - Cosmic clues for dark matter & their implications for a dark matter asymmetry

Fri, Sep 28, 2012, 1:30 pm to 2:30 pm

We examine some of constraints and cosmic clues for the nature of the dark matter. We use these clues and constraints as motivation to examine in greater detail a previously little explored class of models, where the dark matter carries a conserved global charge analogous to baryon number.

### Physics Colloquium: "New Observations about the Renormalization Group Flow.'' Zohar Komargodski

Thu, Sep 27, 2012, 4:30 pm to 5:30 pm

Abstract: ``We review recent breakthroughs in understanding some general features of the Renormalization Group and of Quantum Field Theory. We discuss some applications of these new results and their deep connection to the entanglement of the Quantum Field Theory vacuum.''

### High Energy Theory Seminar - IAS - Sebastian Franco, Durham University - “Bipartite Field Theories: From D-Brane Probes to Scattering Amplitudes”

Mon, Sep 24, 2012, 2:30 pm to 3:30 pm

### Condensed Matter Seminar - Adam Nahum, University of Oxford "Loop models, vortex lines, and SU(n) magnets"

Mon, Sep 24, 2012, 1:15 pm to 2:30 pm

Abstract: I will discuss two apparently disparate types of critical phenomenon which are tied together by the language of loop models. The first arises at geometrical phase transitions in disordered 3D systems with vortex line defects.