Impact of quantum phase transitions on excited-level dynamics.
The influence of quantum phase transitions on the evolution of excited levels in the critical parameter region is discussed. The analysis is performed for one- and two-dimensional systems with first- and second-order ground-state transitions. Examples include the cusp and nuclear collective Hamiltonians. Applications in systems of higher dimensions are possible.
Institute of Particle and Nuclear Physics, Faculty of Mathematics and Physics, Charles University, V Holesovickách 2, 18000 Prague, Czech Republic.
Pavel
P
Cejnar
Pavel
P
Stránský