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Full-Text Articles in Physics
Kaon Transitions And Predictions Of Chiral Symmetry, Jf Donoghue, Br Holstein
Kaon Transitions And Predictions Of Chiral Symmetry, Jf Donoghue, Br Holstein
Barry R Holstein
We describe a set of kaonic electromagnetic and semileptonic weak decay processes which are completely predicted within the framework of chiral symmetry (and, therefore, of low-energy QCD), emphasizing where present problems exist and suggesting future experiments.
The Adiabatic Propagator, Br Holstein
The Adiabatic Propagator, Br Holstein
Barry R Holstein
The Feynman propagator is expanded in the adiabatic limit, wherein the time scale over which the potential varies is long compared to typical quantum mechanical oscillation times in the problem. Comparison with known exact results is made for two simple models.
The Adiabatic Theorem And Berry's Phase, Br Holstein
The Adiabatic Theorem And Berry's Phase, Br Holstein
Barry R Holstein
A study is presented of Berry's observation that when a quantum-mechanical system is transported on a closed adiabatic journey, a topological phase arises in addition to the usual dynamical phase expected from the adiabatic theorem. Consequences are explored in the case of a simple magnetic moment-magnetic field interaction and are shown to lead, among other things, to Dirac's famous relation between electric and magnetic charges.