What equation describes the wavefunction of a single photon?
rishav kumar , 11 Years ago
Grade 9
Engineering Entrance Exams> What equation describes the wavefunction ...
1 Answers
Komal
Last Activity: 10 Years ago
There is no quantum mechanics of a photon, only a quantum field theory of electromagnetic radiation. The reason is that photons are never non-relativistic and they can be freely emitted and absorbed, hence no photon number conservation.
Still, there exists a direction of research where people try to reinterpret certain quantities of electromagnetic field in terms of the photon wave function.
You can also say that the wavefunction of a photon is defined as long as the photon is not emitted or absorbed. The wavefunction of a single photons is used in single-photon interferometry, for example. In a sense, it is not much different from the electron, where the wave-function start to be problematic when electrons start to be created or annihilated
Still, there exists a direction of research where people try to reinterpret certain quantities of electromagnetic field in terms of the photon wave function.
You can also say that the wavefunction of a photon is defined as long as the photon is not emitted or absorbed. The wavefunction of a single photons is used in single-photon interferometry, for example. In a sense, it is not much different from the electron, where the wave-function start to be problematic when electrons start to be created or annihilated
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