Can you explain the fugacity of boson gas in Bose-Einstein Condensation?

  • #1
Ang Han Wei
9
0
Hi,
my course just provided an introduction to Bose-Einstein Condensation.

I was told that this phenomenon occurs when the temperature of Bosons go under a certain critical temperature [itex]T_{c}[/itex] > 0K. At absolute zero, all the Bosons go into the condensed phase.

However, at temperatures between 0K and [itex]T_{c}[/itex], there is a mixture of an ideal Boson gas and condensed bosons.

What then is the fugacity of the boson gas in such an instance?
 
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  • #2
The chemical potential is exactly 0, which corresponds to fugacity 1, I suppose. Hence the density of non-condensed bosons becomes a function of T, only for T<Tc.
 
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