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Download Prof. Bertrand Reulet, Université de Sherbrooke, Canada Talk: 23. May 2014
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Transcript
Prof. Bertrand Reulet, Université de Sherbrooke, Canada Talk: 23. May 2014 Title: The quantum light bulb -- how to generate quantum electromagnetic field with a normal conductor Abstract: > Electrons in conductors have a disordered motion which cause random > fluctuations of the electrical current, a phenomenon commonly referred > to as "noise". In classical physics, the variance of these > fluctuations is simply proportional to the temperature. In a tiny > device placed at very low temperature, electrons can no longer be > considered as classical particles: quantum mechanics dictates their > behavior. We will describe very recent experiments that highlight how > such a quantum current may generate a quantum electromagnetic field. > In particular, we will demonstrate the existence of squeezing (i.e., > the ability to shrink fluctuations below that of vacuum) and emission > of pairs of entangled photons, a key property for the use of light for > quantum information science. >
