24 citations · 127 across the 23 of their papers we have counts for
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math-ph2015★ 1 cited
Gauge Invariance and Symmetry Breaking by Topology and Energy Gap
Carlo Heissenberg, Franco Strocchi
For the description of observables and states of a quantum system, it may be convenient to use a canonical Weyl algebra of which only a subalgebra , with a non-trivial…
physics.hist-ph2015★ 10 cited
Symmetries, Symmetry Breaking, Gauge Symmetries
Franco Strocchi
The concepts of symmetry, symmetry breaking and gauge symmetries are discussed, their operational meaning being displayed by the observables {\em and} the (physical) states. For in…