A gauge theory for a quantum system with isospin

E. B. Lin

Research output: Contribution to journalArticlepeer-review


A quantum system with external symmetry is made into a principal fibre bundle with a nonAbelian Lie group as the structure group, and is equipped with a connection. A gauge theory for a nonrigid molecule on the basis of the observation that the vector bundle associated with the principal fibre bundle provides a setting for quantum mechanics of the internal molecular motion.

Original languageEnglish
Article number014
Pages (from-to)L1045-L1049
JournalJournal of Physics A: Mathematical and General
Issue number17
StatePublished - 1991


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