Monday, April 13, 2015

In quantum mechanics, which concept caters for light rays?


If photon wavefunctions are omnidirectional and don't have a definite size, how comes those from the Sun don't all collapse on Mercury and some do actually reach Earth ?


I understand that wavefunctions describe a cloud of potential parameters, and that an actual particle can materialize at any point of the cloud, which has as many dimensions as needed to represent all characteristics of the particle to be.


But, does the wave function also represent the whole length and direction of the particle's trajectory (like : from the Sun to the Earth) ?




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