Assertion: photon | /r/CapableOf | consider discrete particle
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text: As nouns the difference between photon and phonon is that photon is (particle) the quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime it is a gauge boson while phonon is (physics) the quantum of acoustic or vibrational energy (sound), considered a discrete particle rather than a wave.