First-order quantum phase transition in a finite system

A. Leviatan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


The dynamics at the critical point of a general first-order quantum phase transition in a finite system is examined from an algebraic perspective. Suitable Hamiltonians are constructed whose spectra exhibit coexistence of states corresponding to two degenerate minima in the energy surface separated by an arbitrary barrier. Explicit expressions are derived for wave functions and observables at the critical point.

Original languageAmerican English
Article number051301
JournalPhysical Review C - Nuclear Physics
Issue number5
StatePublished - 2006


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