Events

SBQMI hosts numerous academic and other events throughout the year. Please search by audience or event type, or enter a keyword, to find events of interest to you.

If you are interested in inviting our faculty as keynote speakers at your event, or are a school group interested in visiting our labs, please contact us to submit your request.

Femtosecond broadband ellipsometry and magneto-optics: disentanglement of spin and charge dynamics

06 Nov2014

Speaker: Fabio Boschini, Politecnico di Milano

Time: November 6, 2014, 14:00 - 15:00

Location: Hennings 318

Time-resolved magneto-optical Kerr effect (TR-MOKE) is a powerful technique to study ultrafast spin dynamics in magnetic materials. Since first results published on photoinduced ultrafast spin disorder in ferromagnetic systems (ultrafast demagnetization) [1], a strong debate has arisen about the reliability of the technique [2]. It is well known that magneto-optical signal originates from off-diagonal elements of the dielectric tensor...

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Cosmology with the Baryon Oscillation Spectroscopic Survey (BOSS)

06 Nov2014

Speaker: Florian Beutler, Lawrence Berkeley National Laboratory

Time: November 6, 2014, 16:00 - 17:00

Location: Hennings 201

I will present results from the SDSS-III BOSS-DR11 analysis. In this talk I will focus on the analysis of the power spectrum multipoles, which allows to constrain the expansion of the Universe through Baryon Acoustic Oscillations as well as to measure the growth of structure through redshift-space distortions. Such a measurement can be used to test General Relativity. Our...

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How to get into that “room at the bottom” of DNA analysis

30 Oct2014

Speaker: Sabrina Leslie, McGill University

Time: October 30, 2014, 16:00 - 17:00

Location: Hennings 201

A wide range of life-preserving processes, such as DNA transcription and repair, rely on weak intermolecular interactions and slow dynamics which occur at high concentrations, over long time periods, and often under confinement. Visualizing dynamic processes can present a challenge to fluorescence microscopy, the work horse for resolving biological processes at the molecular scale. To address this challenge, we...

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Ubiquity of planets and diversity of planetary systems: Origin and Destiny of multiple super Earths and gas giants

23 Oct2014

Speaker: Douglas NC Lin, University of California, Santa Cruz

Time: October 23, 2014 16:00 - 17:00

Location: Hennings 201

Planetary astrophysics is the most rapidly advancing field in the astronomical community today. A census suggests that planets are common and their mass- period distribution is a function of the mass and metallicity of their host stars. The diverse and intriguing kinematic properties of multiple planetary systems are likely to be the direct consequence of both the boundary condition...

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Reinventing Introductory Physics for Life Scientists (IPLS)

16 Oct2014

Speaker: Edward Redish, University of Maryland

Time: October 16, 2014 16:00 - 17:00

Location: Hennings 201

A two-term class in physics has been a staple of the education of life scientists for many years. At many large universities life-science students have become a dominant element in this course, their numbers surpassing the number of engineers taking physics. In addition, the biology and medical school communities have begun calling for a more sophisticated and biologically oriented...

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Bio-macromolecules and their complexes – An inspiration for statistical physics

09 Oct2014

Speaker: Leo Golubovitch, University of West Virginia

Time: October 9, 2014 16:00 -17:00

Location: Hennings 201

Biological macromolecules are inherently capable of forming physically interesting self- assembled structures with biologically significant functionalities. We overview the efforts to theoretically understand and possibly control some of these fascinating structures and phenomena. Prominent recent examples for this are novel partially ordered liquid crystalline phases, such as the sliding phases of DNA-cationic lipid complexes used for gene therapy applications...

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Interplay of disorder, nematicity and magnetism in Fe-based Superconductors

02 Oct2014

Speaker: Peter Hirschfeld, University of Florida

Time: October 2, 2014 14:00 - 15:00

Location: Hennings 318

Impurities can nucleate local magnetic states and give rise to quasi-long-range magnetic order in correlated electron systems. In the Fe-based superconductors, stripe-like (pi,0) order usually prevails in parent compounds, but competes with (pi,pi) antiferromagnetism. I show that in such a situation, unusual emergent defect states (“nematogens”) can be created by nonmagnetic impurities which strongly break C4 symmetry and may...

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Characterizing the Distribution of Planetary Architectures with Kepler

25 Sep2014

Speaker: Eric Ford, Penn State University, Center for Exoplanets & Habitable World

Time: September 25, 2014 16:00 - 17:00

Location: Hennings 201

For centuries, planet formation theories were fine tuned to explain the details of solar system. The diversity of planetary systems uncovered by Doppler surveys challenged previous theories and led to insights into planet formation, orbital migration and the excitation of orbital eccentricities and inclinations. NASA’s Kepler mission has identified 450 systems with multiple transiting planet candidates, including nearly 1200...

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Unifying theory for tuned-critical quake statistics: from nanopillars to earthquakes

18 Sep2014

Speaker: Karin Dahmen, University of Illinois at Urbana-Champaign

Time: September 18, 2014 16:00 - 17:00

Location: Hennings 201

The deformation of many solid and granular materials is not continuous, but discrete, with intermittent slips similar to earthquakes. Here, we suggest that the statistical distributions of the slips, such as the slip-size distributions, reflect tuned criticality, with approximately the same regular (power-law) functions, and the same tunable exponential cutoffs, for systems spanning 13 decades in length, from tens...

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Antiferromagnetism in the Hubbard Model with Ultracold Atoms

11 Sep2014

Speaker: Randall Hulet, Rice University Texas, USA

Time: September 11, 2014 16:00 - 17:00

Location: Hennings 201

Ultracold atoms on optical lattices form a versatile platform for studying many-body physics. We have realized the Hubbard model, a “standard model” of strongly-correlated matter. The Hubbard model consists of a cubic lattice with on-site interactions and kinetic energy arising from tunneling to nearest neighbors. Notably, it may contain the essential ingredients of high-temperature superconductivity. While the Hamiltonian has...

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