Fermionic condensate

Fermionic condensate Fermionic condensate is the sixth state of matter discovered by Deborah Jin, Markus Greiner and Cindy Regal in 2003. For this they cooled 500,000 potassium atoms to a temperature of 5? 10 -8 Kelvin in an alternating magnetic field. In these experiments the magnetic field that was changing over time was applied to fermionic atoms, forcing them to bind in bosonic molecules. Fermions have a half-integral spin (1 / 2, 3 / 2, 5 / 2, etc.), while bosons have an integral spin (1, 2, 3, etc.). The spins of two particles are added, so the molecule containing two fermionic atoms, turns into a boson. However, it now appears that even if two fermions are not bound into one molecule, but simply move together by some correlated way, this couple may already behave like bosons and undergo condensation. At the same time it is the most "ephemeral" form of condensation of all that have been observed to date. The gas was exposed to the laser emission and magnetic field to achieve an ultralow temperature required for this experiment. When atoms are in a magnetic trap, their temperature change can be controlled up to one hundredths of a degree. Metals from the first column of the periodic table are most suitable for laser cooling. And the greatest success has been achieved in working with lithium and potassium. It is still early to speak of practical application of the new discovery. But the properties of the fermionic condensate are such that in the future it will be highly possible to get compounds preserving superconductivity properties at room temperature.

Category:

Science & Technology

[Rannyfash]

-8 kelvin??? impossible

[TheEruditepolymath]

translator was unclear in places