Order, chaos and quasi symmetries in a first-order quantum phase transition

A. Leviatan*, M. Macek

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


We study the competing order and chaos in a first-order quantum phase transition with a high barrier. The boson model Hamiltonian employed, interpolates between its U(5) (spherical) and SU(3) (deformed) limits. A classical analysis reveals regular (chaotic) dynamics at low (higher) energy in the spherical region, coexisting with a robustly regular dynamics in the deformed region. A quantum analysis discloses, amidst a complicated environment, persisting regular multiplets of states associated with partial U(5) and quasi SU(3) dynamical symmetries.

Original languageAmerican English
Article number012012
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - 2014
Event16th International Symposium Symmetries in Science - Bregenz, Austria
Duration: 21 Jul 201326 Jul 2013

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© Published under licence by IOP Publishing Ltd.


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