Geometric phase for an adiabatically evolving open quantum system

Details Geometric phase for an adiabatically evolving open quantum system Geometric phase for an adiabatically evolving open quantum system

2004-06-02

arxiv.org/abs/quant-ph/0406018v1

Physical Review A 70, 044103 (2004)

Physics

Quantum Physics

10 pages, 0 figures

Scientific paper

10.1103/PhysRevA.70.044103

We derive an elegant solution for a two-level system evolving adiabatically under the influence of a driving field with a time-dependent phase, which includes open system effects such as dephasing and spontaneous emission. This solution, which is obtained by working in the representation corresponding to the eigenstates of the time-dependent Hermitian Hamiltonian, enables the dynamic and geometric phases of the evolving density matrix to be separated and relatively easily calculated.

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