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Seminars And Colloquia This Week

ics Atomic
Monday, November 12, 2018
3:30 PM
Physics Building, Room 204
RESERVED
ics Nuclear
Tuesday, November 13, 2018
3:30 PM
Physics Building, Room 204

"Available"
ics High Energy
Wednesday, November 14, 2018
3:30 PM
Physics Building, Room 313
Note special room.
Andreas Jung [Host: Bob Hirosky]
Purdue
"Top quark physics at the precision frontier"
ABSTRACT:

The talk will highlight latest results on top quark physics at CMS employing pp collision data at a center-of-mass energy of 13 TeV. New results from other experiments and center of mass energies will also be discussed. With millions of top quarks already collected at the LHC top quark physics enters the precision era. Differential cross section measurements and top quark property measurements, in particular angular correlations, are challenging the Standard Model predictions. The intimate connection of the top quark to the Higgs Boson is scrutinized by highly precise direct measurements of the top quark mass, with alternative approaches entering the precision realm as well. The talk concludes with implications for the SM and an outlook towards the ultimate precision frontier at the high-luminosity phase of the LHC.

 

ics Condensed Matter
Thursday, November 15, 2018
11:00 AM
Physics Building, Room 313

"Available"
ics Colloquium
Friday, November 16, 2018
3:30 PM
Physics Building, Room 204
Mark Stiles [Host: Joe Poon & Avik Ghosh]
NIST
"Energy-efficient neuromorphic computing with magnetic tunnel junctions"
ABSTRACT:

Human brains can solve many problems with orders of magnitude more energy efficiency than traditional computers.  As the importance of such problems, like image, voice, and video recognition, increases, so does the drive to develop computers that approach the energy efficiency of the brain.  Magnetic devices, especially tunnel junctions, have several properties that make them attractive for such applications.  Their conductance depends on the state of the ferromagnets making it easy to read information that is stored in their magnetic state.  In addition, current can manipulate the magnetic state.  Based on this electrical control of the magnetic state, magnetic tunnel junctions are actively being developed for integration into CMOS integrated circuits to provide non-volatile memory.  This development makes it feasible to consider other geometries that have different properties.  I describe two of the computing primitives that have been constructed based on the different functionalities of magnetic tunnel junctions.  The first of these uses tunnel junctions in their superparamagnetic state as the basis for a population coding scheme.  The second uses them as non-linear oscillators in the first nanoscale “reservoir” for reservoir computing.

To add a speaker, send an email to phys-speakers@Virginia.EDU. Please include the seminar type (e.g. Seminars and Colloquia), date, name of the speaker, title of talk, and an abstract (if available).