Space-like energy momentum in quantum electrodynamics
Quantum Physics
2007-05-23 v1
Abstract
A common assumption in quantum field theory is that the energy-momentum 4-vector of any quantum state must be time-like. However it has been recently shown [4] that this is not the case for a Dirac-Maxwell field in the coulomb gauge. Here we will present a proof that is simpler then the proof of Ref. [4] that there must exist quantum states which are space-like for a Dirac-Maxwell field in the coulomb gauge.
Cite
@article{arxiv.quant-ph/0703257,
title = {Space-like energy momentum in quantum electrodynamics},
author = {Dan Solomon},
journal= {arXiv preprint arXiv:quant-ph/0703257},
year = {2007}
}
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9 pages