1. Jun 30, 2005

### learningphysics

$$S = v\int_0^\infty\phi(\rho,\nu)d\nu$$

$$\nu$$ is frequency of radiation. $$\rho(\nu)$$ is radiation energy, v is volume.

I'm getting this from Einstein's photoelectric effect paper.

Thanks a lot!

Last edited: Jun 30, 2005
2. Jun 30, 2005

### dextercioby

Well,i haven't seen it in this actual form.Surely it wasn't an invention by Einstein.Did you check the formula for the entropy of BB radiation in a standard SM textbook,like Schwabl or Greiner...?Can u see the connection,then ?

Daniel.

3. Jun 30, 2005

### learningphysics

No. I haven't studied statistical mechanics (beyond very basic ideas of entropy), and don't have a text to compare.

I figured I'd probably need to have a good understanding of statistical mechanics before I could get through this paper. :yuck:

edit: Which SM text would you recommend?

Last edited: Jun 30, 2005
4. Jun 30, 2005

### dextercioby

Greiner's book in his series seemed accessible / readable enough and provided a wealth of worked out examples.

Daniel.

5. Jan 3, 2009

### MuggsMcGinnis

Last edited by a moderator: Apr 24, 2017