Bose Einstein Condensate Light
This form of matter was predicted in 1924 by albert einstein on the basis of.
Bose einstein condensate light. This matter is both a superfluid which has zero friction and viscosity and a kind of bose einstein condensate sometimes described as the fifth state of matter and it allows light to actually flow around objects and corners. Weitz nature 468 545 2010 2 2 3. Light has been slowed to one mile per hour 0000000015c in an unusual form of matter known as a bose einstein condensate bec. Light like condensates don t behave as we would expect.
And in 2001 physicists for the first time managed to stop light in a vapor of rubidium gas. In fact there. He bose einstein condensate it is a state of matter that occurs in certain particles at temperatures close to absolute zero. And the bose einstein condensate is considered the fifth state.
The study represents the first direct observation of quantum depletion in a non equilibrium bose einstein condensate bec. Spectra for densities around photonic bec threshold j. For a long time it was thought that the three possible states of aggregation of matter were solid liquid and gas. K kelvin coalesce into a single quantum mechanical entity that is one that can be described by a wave function on a near macroscopic scale.
Lene vestergaard hau born november 13 1959 in vejle denmark is a danish physicist who is currently the mallinckrodt professor of physics and of applied physics at harvard university she received a phd from aarhus university in 1999 she led a harvard university team who by use of a bose einstein condensate succeeded in slowing a beam of light to about 17 metres per second and in 2001. Under such conditions a large fraction of bosons occupy the lowest quantum state at which point microscopic quantum mechanical phenomena. Bose einstein condensate bec a state of matter in which separate atoms or subatomic particles cooled to near absolute zero 0 k 273 15 c or 459 67 f. Then the fourth state was discovered.
Condensate bose einstein condensate of light light bulb.