I'm currently going through statistical physics, especially on Fermi energy when I came across a term called "quasi-continuum", what exactly is it?

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I&#039;m currently going through statistical physics, especially on Fermi energy when I came across a term called &quot;quasi-continuum&quot;, what exactly is it?

Olivia Petersen · Accepted Answer

&quot;Quasi-something&quot; is &quot;almost something&quot;. In particular, quasicontinuum is a discrete set that contains so many entries (typically energy eigenvalues) with so small spacings that it looks like a continuum.For example, if the energy eigenvalues are      E    n    =  n  ϵwhere n is integer and   ϵ is 0.0001 times some natural energy difference, then       E    n   is almost continuous and the set   {      E    n        |    n  ∈  Z  } is a quasi-continuum. In many physical questions, a quasi-continuum behaves just like a continuum.

I'm currently going through statistical physics, especially on Fermi energy when I came across a term called "quasi-continuum", what exactly is it?

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