Geometric phase and gauge theory structure in quantum computing
arXiv:1104.3771 · doi:10.1088/1742-6596/306/1/012065
Abstract
We discuss the presence of a geometrical phase in the evolution of a qubit state and its gauge structure. The time evolution operator is found to be the free energy operator, rather than the Hamiltonian operator.
5 pages, presented at Fifth International Workshop DICE2010: Space-Time-Matter - current issues in quantum mechanics and beyond, Castiglioncello (Tuscany), September 13-17, 2010