6533b861fe1ef96bd12c45d4

RESEARCH PRODUCT

Reconstruction of time-dependent coefficients: a check of approximation schemes for non-Markovian convolutionless dissipative generators

Giulia GualdiUgo MarzolinoAntonella De PasqualeBruno Bellomo

subject

PhysicsTomography Convolutionless master equationQuantum PhysicsQuantum decoherenceSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciStochastic processSampling (statistics)Markov processFOS: Physical sciencesAtomic and Molecular Physics and Opticssymbols.namesakeQuantum mechanicsMaster equationDissipative systemsymbolsQuantum systemStatistical physicsQuantum Physics (quant-ph)Finite set

description

We propose a procedure to fully reconstruct the time-dependent coefficients of convolutionless non-Markovian dissipative generators via a finite number of experimental measurements. By combining a tomography based approach with a proper data sampling, our proposal allows to relate the time-dependent coefficients governing the dissipative evolution of a quantum system to experimentally accessible quantities. The proposed scheme not only provides a way to retrieve full information about potentially unknown dissipative coefficients but also, most valuably, can be employed as a reliable consistency test for the approximations involved in the theoretical derivation of a given non-Markovian convolutionless master equation.

yearjournalcountryeditionlanguage
2010-01-01
10.1103/physreva.82.062104http://arxiv.org/abs/1007.4537