6533b826fe1ef96bd12853cc

RESEARCH PRODUCT

TRANSIENT DYNAMICS AND ASYMPTOTIC POPULATIONS IN A DRIVEN METASTABLE QUANTUM SYSTEM

P. CaldaraLuca MagazzùA. La CognataDavide ValentiBernardo SpagnoloGiuseppe Falci

subject

PhysicsFluctuation phenomena random processes noise and Brownian motionDynamics (mechanics)quantum statistical methodGeneral Physics and AstronomyRELAXATIONDecoherenceSettore FIS/03 - Fisica Della MateriaNOISEQuantum systems with finite Hilbert spaceClassical mechanicsRELAXATION; NOISEMetastabilityQuantum systemTransient (oscillation)open system

description

The transient dynamics of a periodically driven metastable quantum system, interacting with a heat bath, is investigated. The time evolution of the populations, within the framework of the Feynman–Vernon influ- ence functional and in the discrete variable representation, is analyzed by varying the parameters of the external driving. The results display strong non-monotonic behaviour of the populations with respect to the driving frequency.

10.5506/aphyspolb.44.1185http://hdl.handle.net/10447/83724