An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 1 Search : Bose-Einstein condensation
Bose-Einstein condensation (BEC)
  چگالش ِ بوز-اینشتین   
cagâleš-e Bose-Einstein

Fr.: condensation de Bose-Einstein   

A → quantum phase transition during which the → bosons constituting a sufficiently cooled boson gas are all clustered in the → ground energy state. The phase transition results in a → Bose-Einstein condensate. This phenomenon occurs when the temperature becomes smaller than a critical value given by: Tc = (2πħ2 / km)(n / 2.612)2/3, where m is mass of each boson, ħ is the → reduced Planck's constant, k is → Boltzmann's constant, and n is the particle number density. When T  ≤  Tc, the → de Broglie wavelength of bosons becomes comparable to the distance between bosons.

boson; → Einstein; → condensation.