Impact of Quantum Phase Transitions on Excited Level Dynamics
arXiv:0807.3649 · doi:10.1103/PhysRevE.78.031130
Abstract
The influence of quantum phase transitions on the evolution of excited levels in the critical parameter region is discussed. The analysis is performed for 1D and 2D systems with first- and second-order ground-state transitions. Examples include the cusp and nuclear collective Hamiltonians.
6 pages, 4 figures