Abstract
We study the evolution of the dynamics across a generic first-order quantum phase transition in an interacting boson model of nuclei. The dynamics inside the phase coexistence region exhibits a very simple pattern. A classical analysis reveals a robustly regular dynamics confined to the deformed region and well separated from a chaotic dynamics ascribed to the spherical region. A quantum analysis discloses regular bands of states in the deformed region, which persist to energies well above the phase-separating barrier, in the face of a complicated environment. The impact of kinetic collective rotational terms on this intricate interplay of order and chaos is investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 110-114 |
| Number of pages | 5 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 714 |
| Issue number | 1 |
| DOIs | |
| State | Published - 24 Jul 2012 |
Bibliographical note
Funding Information:This work is supported by the Israel Science Foundation . M.M. acknowledges the Golda Meir Fellowship Fund and partial support by the Czech Ministry of Education ( MSM 0021620859 ).
Keywords
- Interacting boson model (IBM)
- Quantum shape-phase transitions
- Regularity and chaos