Mass as a Relativistic Quantum Observable

Details Mass as a Relativistic Quantum Observable Mass as a Relativistic Quantum Observable

1996-10-03

arxiv.org/abs/quant-ph/9610004v2

Europhys.Lett.38:1,1977

Physics

Quantum Physics

5 pages, revised version

Scientific paper

10.1209/epl/i1997-00108-7

A field state containing photons propagating in different directions has a non vanishing mass which is a quantum observable. We interpret the shift of this mass under transformations to accelerated frames as defining space-time observables canonically conjugated to energy-momentum observables. Shifts of quantum observables differ from the predictions of classical relativity theory in the presence of a non vanishing spin. In particular, quantum redshift of energy-momentum is affected by spin. Shifts of position and energy-momentum observables however obey simple universal rules derived from invariance of canonical commutators.

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