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<p class="MsoNormal">There will be an extra John Anderson colloquium by our SUPA Distinguished Visitor, Prof David Snoke (Pittsburgh) on Wednesday 1<sup>st</sup> July. As usual tea/coffee will be served after the talk.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Speaker: Prof David Snoke, Department of Physics and Astronomy, University of Pittsburgh.<o:p></o:p></p>
<p class="MsoNormal">Venue: John Anderson JA3.14<o:p></o:p></p>
<p class="MsoNormal">Times/Date: 3pm Wednesday 1<sup>st</sup> July 2015<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Title: Superfluids of Light<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Abstract:<o:p></o:p></p>
<p class="MsoNormal">It is possible to engineer the properties of photons in an optical medium to have an effective mass and repulsive interactions, so that they act like a gas of atoms. These “renormalized photons” are called polaritons. In the past ten years,
several experiments have demonstrated many of the canonical effects of Bose-Einstein condensation and superfluidity of polaritons. In this talk I will review some of this past work and present recent results which show quantized circulation of the polariton
condensate in a ring trap.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">http://www.strath.ac.uk/physics/research/colloquia/<o:p></o:p></p>
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