Let's consider 2 photons of the same frequency 𝛎.

Is it possible to consider the following situation (of very low probability and certainly nearly impossible to produce, consider this as a theoretical experiment if you prefer): these 2 photons are in the exact same position, following the same strait line at speed c, and have opposite phases.

Is it valid to consider the frequency and the phase of a single photon?

Will there be any kind of interaction between these 2 photons?

What will the result look like in term of wave signal?

Will this be looking like an electro-magnetic signal of amplitude 0, with an energy of 2h𝛎?

  • 1
    $\begingroup$ What does "2 photons are in the exact same position" and "have opposite phases" mean? How do you localize a relativistic particle like the photon, and what do you mean by the phase of a single photon? $\endgroup$ – ACuriousMind Mar 2 '17 at 14:04
  • $\begingroup$ From my point of vue, a photon, as a quantum of electromagnetic field, is characterized by a frequency, a speed a direction and a phase. Is this wrong? $\endgroup$ – dan Mar 2 '17 at 14:12
  • $\begingroup$ I don't see any easy way to bring 2 photons in the "exact same position". Let's consider this question as a thought experiment or a very low probability event. $\endgroup$ – dan Mar 2 '17 at 14:13
  • $\begingroup$ The point is not that it is difficult to get two photons "into the same position". The point is that photons don't have a definite position at all, so it is unclear even in principle what it means for them to be at the "exact same position". $\endgroup$ – ACuriousMind Mar 2 '17 at 14:14
  • $\begingroup$ Is there an exclusion principle for photons? $\endgroup$ – dan Mar 2 '17 at 14:16

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