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({});

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# The physical meaning of a phase factor

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