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<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">Prof. Paul Kwiat, University of Illinois – Urbana-Champaign, will be giving two talks next week that maybe of interest to you. Prof. Kwiat was the student-elected Colloquium speaker
here a couple of years ago. He is an engaging speaker; his Colloquium was enjoyed by many and I expect his talks next week will be as well.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">Prof. Kwiat will speak at the
<b>Science Sundays lecture on Sunday December 8 at 3:00 PM in the Ohio Union U.S. Bank Conference Theatre</b>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">He will speak again at the
<b>Physics Condensed Matter Theory Seminar on Monday December 9 at 11:30 AM.</b><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">Abstract for the Science Sundays talk:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">“The Quantum Information Revolution”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">More than a century after Einstein's revolutionary suggestion that light is composed of particles, the quantum information revolution seeks to use the almost magical properties of nonclassical
physics to enable new feats in information processing that would be difficult or impossible without the quantum advantage. Kwiat, Bardeen Chair in Physics, University of Illinois, Urbana-Champaign and Fellow of the American Physical Society and the Optical
Society of America, will discuss how quantum randomness, superposition, and entanglement can be used to realize perfectly secure cryptography, ultra-fast computation, and completely non-invasive photography. Time/appetites permitting, Kwiat may also give a
brief lesson in Quantum Cooking.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">Abstract for the CMT Seminar:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">“The End of Local Realism”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light","sans-serif"">Ever since John Bell showed that quantum mechanics could give different predictions from a local realistic model in an appropriate experiment, there has been wide interest in carrying
out such a test. Unfortunately, to date no truly unambiguous test has ever been completed, due to the existence of two experimental loopholes: the “locality loophole” and the “detection loophole”. Each of these has been closed individually in different experimental
systems – photons, atoms, ions, and superconductors – but no system has simultaneously closed each of the loopholes. Here we present a photon-based experiment that violates the Bell inequality, free of the detection loophole. We also discuss some rather subtle
points in performing such an experiment, to ensure that new loopholes do not arise. Our experiment has some “efficiency overhead”, but in its current form probably insufficient to perform a fully loophole-free test of local realism, which requires much larger
separations between source and detectors. We discuss possible improvements, as well as the application to device-independent quantum communication, e.g., certified private random number generation. Time permitting, our efforts to turn undergraduates into Schrödinger
cats will be discussed.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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