- #1

Rayan

- 17

- 1

- Homework Statement
- Show that for bosons

$$ \overline{(\Delta \eta)^2} \quad=\quad \overline{ \eta_{BE}} (1 + \overline{ \eta_{BE}} ) $$

where

$$ (\Delta \eta) \quad=\quad \eta - \overline{ \eta } $$

- Relevant Equations
- .

I tried to show this equality by explicitly determining what

$$ \overline{(\Delta \eta)^2} $$

is, but I got a totally different answer for some reason, here is my attempt to solve it, what did I miss?

$$ \overline{(\Delta \eta)^2} $$

is, but I got a totally different answer for some reason, here is my attempt to solve it, what did I miss?

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