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quant-ph2011★ 11 cited
From Bargmann's superselection rule to quantum Newtonian spacetime
H. Hernandez-Coronado
Bargmann's superselection rule, which forbids the existence of superpositions of states with different mass and, therefore, implies the impossibility of describing unstable particl…
math-ph2011
Unstable particles in non-relativistic quantum mechanics?
H. Hernandez-Coronado
The Schroedinger equation is up-to-a-phase invariant under the Galilei group. This phase leads to the Bargmann's superselection rule, which forbids the existence of the superpositi…