I'm a bit confused about how the uncertainty principle allows for the spontaneous creation and annihilation of virtual particle pairs.(adsbygoogle = window.adsbygoogle || []).push({});

I can understand that energy conservation can be violated for a very short time as per delta_e*delta_t > h_bar/2. However, when the virtual particle pair annihilates, does it result in the emission of a photon with e = 2mc^2?

Does this photon propagate like a normal photon? By what mechanism does it disappear again into zero energy so that energy conservation is not violated permanently?

Thanks

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# Uncertainty principle, virtual particle pairs and energy

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