Regularity and chaos at critical points of first-order quantum phase transitions

M. MacEk*, A. Leviatan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We study the interplay between regular and chaotic dynamics at the critical point of a generic first-order quantum phase transition in an interacting boson model of nuclei. A classical analysis reveals a distinct behavior of the coexisting phases in a broad energy range. The dynamics is completely regular in the deformed phase and, simultaneously, strongly chaotic in the spherical phase. A quantum analysis of the spectra separates the regular states from the irregular ones, assigns them to particular phases, and discloses persisting regular rotational bands in the deformed region.

Original languageAmerican English
Article number041302
JournalPhysical Review C - Nuclear Physics
Issue number4
StatePublished - 10 Oct 2011


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