Events at Physics

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Events During the Week of March 20th through March 27th, 2011

Monday, March 21st, 2011

Plasma Physics (Physics/ECE/NE 922) Seminar
Separation of energy and particle transport barriers in the I-Mode regime on Alcator C-Mod
Time: 12:05 pm
Place: 2241 Chamberlin Hall
Speaker: Amanda Hubbard, MIT
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Tuesday, March 22nd, 2011

Atomic Seminar
Laser cooling and trapping of dysprosium
Time: 10:00 am
Place: 5310 Chamberlin
Speaker: Seo Ho Youn, University of Illinois at Urbana-Champaign
Abstract: I present details of the dysprosium (Dy) laser cooling and trapping apparatus at the University of Illinois at Urbana-Champaign that has recently produced a magneto-optically and magneto-statically trapped Dy gas. I also discuss unique MOT/MT dynamics and anisotropic sub-Doppler laser cooling of Dy. At the end of the talk, I conclude with a current status of Dy experiment and a prospect toward quantum degeneracy.
Host: Mark Saffman
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Wednesday, March 23rd, 2011

Department Meeting
Time: 12:15 pm
Place: 5310 Chamberlin Hall
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Thursday, March 24th, 2011

NPAC (Nuclear/Particle/Astro/Cosmo) Forum
Symmetry methods for the nuclear shell model
Time: 4:00 pm
Place: 4274 Chamberlin
Speaker: Mark Caprio, University of Notre Dame
Host: Baha Balantekin
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Friday, March 25th, 2011

Theory/Phenomenology Seminar
The Particle Physics and Cosmology of SU(4) Heterotic Vacua---the B-L MSSM
Time: 2:30 pm - 3:30 pm
Place: 5280 Chamberlin Hall
Speaker: Burt Ovrut, University of Pennsylvania
Host: Sogee Spinner
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Physics Department Colloquium
Cosmology without Cosmic Variance
Time: 4:00 pm
Place: 2241 Chamberlin Hall (coffee at 3:30 pm)
Speaker: Gary Bernstein, University of Pennsylvania
Abstract: The acceleration of the Hubble expansion may be due to the failure of General Relativity to explain gravity on cosmological scales. This can be tested by measuring the gravitational growth of the largest structures, 100 Mpc or larger. The standard methods for such experiments involve measuring power spectra at different epochs, and are therefore limited by fluctuations from the finite number of large-scale modes in the observable Universe, a.k.a. "cosmic variance." I will describe how galaxy redshift and weak gravitational lensing surveys can be combined in a new way to measure gravitational growth to theoretically unlimited precision with a finite survey of the sky.
Host: Timbie
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