6533b827fe1ef96bd1286537
RESEARCH PRODUCT
Geometric phase in open systems.
M. Franca SantosAngelo CarolloI. Fuentes-guridiVlatko Vedralsubject
PhysicsSpontaneous decaySpontaneous decayDensity matrixQuantum PhysicsQuantum decoherenceMarkovian master equationDephasingOperator (physics)Physical systemGeneral Physics and AstronomyFOS: Physical sciencesCondensed Matter::Mesoscopic Systems and Quantum Hall EffectGeometric phaseBerrys phaseStatistical physicsQuantum Physics (quant-ph)description
We calculate the geometric phase associated to the evolution of a system subjected to decoherence through a quantum-jump approach. The method is general and can be applied to many different physical systems. As examples, two main source of decoherence are considered: dephasing and spontaneous decay. We show that the geometric phase is completely insensitive to the former, i.e. it is independent of the number of jumps determined by the dephasing operator.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-09 | Physical review letters |