Causality Rules

Scattering of light by light is a fundamental process arising at the quantum level through vacuum fluctuations. This book will explain how this quantum process can entirely be described in terms classical quantities. This description is derived from general principles, such as causality, unitarity, Lorentz, and gauge symmetries.

Raspandirea luminii prin lumina este un proces fundamental care apare la nivelul cuantic prin fluctuatii de vid. Aceasta carte va explica modul in care acest proces cuantic poate fi descris in intregime in termeni de cantitati clasice.