Events at Physics |
Events During the Week of January 25th through February 1st, 2009
Monday, January 26th, 2009
- Plasma Physics (Physics/ECE/NE 922) Seminar
- "A Kalman Filter for Feedback Control of Rotating External Kink Instabilities in a Tokamak
- Time: 12:05 pm - 1:15 pm
- Place: 3345 Engineering Hall
- Speaker: Jeremy Hanson, Columbia University
- High Energy Seminar
- On the road to the Higgs: evidence for semileptonic WW/WZ decays at DZero
- Time: 4:00 pm
- Place: 4274 Chamberlin: (Coffee and Cookies at 3:45 pm)
- Speaker: Wade Fisher, FNAL
- Host: Matthew Herndon
Tuesday, January 27th, 2009
- Special Plasma Seminar
- Magnetic Fluctuations in Maryland Centrifugal Experiment (MCX)
- Time: 12:05 pm - 1:15 pm
- Place: Room 5280 Chamberlin Hall
- Speaker: Ilker Uzun-Kaymak, University of Maryland
Wednesday, January 28th, 2009
- Astronomy Colloquium
- Special Astronomy Colloquium Talk
- Magnetic Fields and Cosmic Rays in Galaxy Clusters
- Time: 12:00 pm
- Place: 6515 Sterling Hall
- Speaker: Klaus Dolag, Max Planck Institute for Astronomy
- Abstract: In galaxy clusters, non-thermal components such as magnetic field and high energy particles keep a record of the processes acting since early times till now. These components play key roles by controlling transport processes inside the cluster atmosphere and therefore have to be understood in detail. However including them in simulations is extremely challenging as the structures in and around clusters are quite complex and span a very large dynamic range in scales. I will report the status of what can be achieved in numerical simulations of the formation of galaxy clusters in cosmological context and our predictions for the magnetic field structure for different models of magnetic seed fields. This allows us to put constrains on the presence of cosmic ray protons in galaxy clusters by comparing in detail the induced radio emission in these simulations with observations. Additional, such simulations can be used to constrain the transport and the deflection of UHECRs within clusters and large scale structures.
- Host: Zweibel
Thursday, January 29th, 2009
- NPAC (Nuclear/Particle/Astro/Cosmo) Forum
- Status and first results of the ANTARES neutrino telescope
- Time: 4:00 pm
- Place: 4274 Chamberlin
- Speaker: Simona Toscano, Valencia
- Abstract: With the installation of the last two lines in May 2008, ANTARES (Astronomy with a Neutrino Telescope and Abyss environmental RESearch) is currently the largest neutrino detector in the Northern Hemisphere. The detector consists of 12 lines, carrying
almost 900 ten-inch photomultipliers (PMTs), placed at a depth of 2500 m in the Mediterranean Sea, about 40 km offshore Toulon in South France. The PMTs detect the Cerenkov light emitted by muons from neutrino charged current interactions in the surrounding seawater and the rock below. The information provided by the number of photons detected and their arrival times is used to infer the neutrino track direction. Thanks to its exceptional angular resolution, better than 0.3◦ above 10 TeV, ANTARES
is especially suited for the search of astrophysical point-like sources. The first data collected with the 5-Line detector, which covers the period from January to December 2007, have been analyzed to look for a possible neutrino excess from a
list of prospective neutrino sources. In this talk, the current status of the ANTARES neutrino telescope, including the first
results obtained from the analysis of the 5-Line data, will be presented. - Host: Teresa Montaruli
- Special Plasma Seminar
- Upgrade of Motional Stark Effect Diagnostic on Alcator C-Mod
- Time: 4:00 pm - 5:30 pm
- Place: Room 5280 Chamberlin Hall
- Speaker: Jinseok Ko, MIT Plasma Science and Fusion Center
Friday, January 30th, 2009
- Physics Department Colloquium
- Long range interactions between Rydberg atoms
- Time: 4:00 pm
- Place: 2241 Chamberlin Hall
- Speaker: Saffman, University of Wisconsin-Madison
- Abstract: Interactions between Rydberg states of neutral atoms are a promising approach for fast and long range quantum gates. We have demonstrated that a single Rydberg excited Rb atom blocks excitation of a second atom located more than 10 microns away. The observed probability of double excitation of < 20% is consistent with a theoretical model of the Rydberg interaction. Progress towards using blockade to demonstrate a quantum CNOT gate with neutral atoms as well as ideas for creating multiqubit entanglement will be presented.
- Host: Walker