BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Ricardo Decca\, IUPUI\n\n
\n This talk deals with measurement s of small forces at sub-micron separations. It tries to address an innoce nt enough question: Is Newtonian gravity valid at all distances? I will tr y to convey the deep sense of ignorance we still have in this topic\, and describe the efforts undertaken to advance our knowledge. In particular\, our experiments are sensitive to Yukawa-like corrections (i.e. interaction s mediated by massive bosons) in the 0.1 to 1 micron range. \;
\n\n It will be shown that when trying to measure the gravitational interac tion at short separations (on the order of 100 nm)\, other forces have to be taken into account. Among them\, vacuum fluctuations are the more ubiqu itous ones.
\n\n A brief description of how macroscopic bodies (clas sical objects) interact with vacuum fluctuations (a purely quantum effect) will be presented&hellip\; towards developing approaches that are insensi tive to them! These approaches use an \; engineered sample which allow s to establish better constraints in Yukawa-like interactions. This is acc omplished by measuring the difference in forces in configurations where va cuum fluctuations are the same\, but the corrections to Newtonian gravity (if any) are not.
\n DTSTART:20141031T193000Z LOCATION:Physics Building\, Room 204 SUMMARY:Hoping to get something out of nothing: Vacuum fluctuations and New tonian (?) gravity END:VEVENT END:VCALENDAR