Study of bcs-bec crossover physics and evaluation of energy gap parameters and chemical potential for the crossover

The technique used to create alkali BEC were applied to other class of quantum particles, fermions. Earlier alkali atoms such as87Rb (composite bosons) were cooled as a gas down to nano kelvin temperature via laser cooling and evaporative cooling. At these temperatures the thermal de Broglie wavelen...

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Bibliographic Details
Published in:Research Journal of Science and Technology 2020-10, Vol.12 (4), p.302-306
Main Authors: Kumar, Amitesh, Verma, RK
Format: Article
Language:English
Subjects:
Bose-Einstein condensates
Bosons
Chemical potential
Cooling
De Broglie wavelengths
Energy gap
Evaporative cooling
Fermions
Fluids
Laser cooling
Matter waves
Superfluidity
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Summary:The technique used to create alkali BEC were applied to other class of quantum particles, fermions. Earlier alkali atoms such as87Rb (composite bosons) were cooled as a gas down to nano kelvin temperature via laser cooling and evaporative cooling. At these temperatures the thermal de Broglie wavelength of the particle becomes in order of the inter-particle spinning in the gas and Bose-Einstein condensate is formed. Experiments also observed that condensate behave as matter wave and verified the super fluid nature of the condensates.
ISSN:0975-4393
2349-2988
DOI:10.5958/2349-2988.2020.00043.1