A phase factor is [itex]e^{i\phi}[/itex]. Mathematically a multiplication of a wavefunction by phase factor is equivalent to a rotation of the state vector by the angle [itex]\phi[/itex], however the probability amplitudes are unchanged. So what is the physical meaning of it?(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# The physical meaning of a phase factor

**Physics Forums | Science Articles, Homework Help, Discussion**