MadSci Network: Physics

Re: Bose-Einstien condensate? Observable effects same as faster than light?

Date: Thu Aug 19 14:06:57 1999
Posted By: Donald E Duggan, Undergraduate, Astronomy/physics - fire science, just plain ol' home
Area of science: Physics
ID: 933721807.Ph

Cooling rubidium atoms to a temperature of 170 billionths of one degree of absolute zero (459.67 degrees F ) caused the indvidual atoms to calesce into a single super atom, behaving as a single entity. Atoms at room temperature move around at about 1000 miles per hour. At the temperatures reached for the condensate they move at about 3 feet per hour. The created Bose-Einstein condensate move much slower than that, too slow to measure with current technology. This is due to the fact that we are working so close to absolute zero where all motion stops.

So, no the Bose-Einstein condensate does not move faster that the speed of light. From our standpoint, they barely move at all.

Thank you for your question,

Donald E Duggan

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