### Subject: how big is the difference between classical and quantum electrodynamics ?

Date: **Tue May 24 23:57:07 2005**

Posted by **Werner**

Grade level: **nonaligned**
School: **No school entered.**

City: **Tokyo** State/Province: **No state entered.**
Country: **Japan**

Area of science: **Physics**

ID: **1116997027.Ph**

**Message:**

After reading the book "QED" by R. Feynman I was wondering especially with
regard to the famouns mirror example of Fig. 24 (p.43), where the probability of
detecting photons at point P is derived simply by adding arrows, how big would
be the difference in terms of the length of the total arrow if we try to
calculate the total field at point P via classical electrodynamics based on a
rigorous solution of Maxwell's equations and compare the result with QED ?
I would be also very grateful if you could recommend me some other good books
about QED . Thank you .

Re: how big is the difference between classical and quantum electrodynamics ?

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