BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:UW-Madison-Physics-Events BEGIN:VEVENT SEQUENCE:0 UID:UW-Physics-Event-4108 DTSTART:20160304T170000Z DURATION:PT1H0M0S DTSTAMP:20260419T145135Z LAST-MODIFIED:20160229T131709Z LOCATION:5310 Chamberlin SUMMARY:Quantum information with cold atom ensembles: beyond continuou s variables\, Atomic Physics Seminar\, Tim Byrnes\, NYU DESCRIPTION:An alternative framework to quantum information and comput ation based on spin coherent states is proposed. Traditionally quantum computing approaches are formulated in terms of either discrete (qubi t) or continuous variables. Our approach offers an alternative third p ath\, naturally suited towards implementations in cold atom ensembles and BECs. The scheme is illustrated by an application to quantum algor ithms and we discuss the effects of decoherence induced by the large n umber of particles in the BEC. In particular\, we discuss a quantum t eleportation protocol that allows for the transfer of spin coherent st ates beyond the usual continuous variables formalism. The scheme diffe rs from existing protocols in that a large ensemble of spins is telepo rted\, rather than a qubit variable\, resulting in a type of macroscop ic teleportation. Other techniques such as phase contrast imaging and Deutsch-Jozsa algorithm in a beyond continuous variables context are a lso discussed.
\n URL:https://www.physics.wisc.edu/events/?id=4108 END:VEVENT END:VCALENDAR