화학공학소재연구정보센터
Journal of Physical Chemistry A, Vol.105, No.12, 2509-2514, 2001
Quantum and classical connections and topological phases: A study of a perturbed rotator
In this paper are discussed the quantum mechanical connection and its classical counterpart, as well as the quantum and classical topological angles. The two were calculated for a model system to see whether they show any resemblance. The most interesting result we found is that the quantum and the classical topological phases are each formed due to a single discontinuous jump that occurs at some time during the external cycle. However, whereas the quantum mechanical topological phase is formed in the usual adiabatic limit, we had to establish a new parameter which, by allowing it to approach its limiting value, forms the classical topological phase.