On Galilei Invariance in Quantum Mechani
✍
Domenico Giulini
📂
Article
📅
1996
🏛
Elsevier Science
🌐
English
⚖ 578 KB
We reinvestigate Bargmann's superselection rule for the overall mass of n particles in ordinary quantum mechanics with Galilei invariant interaction potential. We point out that in order for mass to define a superselection rule it should be considered as a dynamical variable. We present a minimal ex