6533b831fe1ef96bd1299ac9

RESEARCH PRODUCT

Non-Markovian dynamics of interacting qubit pair coupled to two independent bosonic baths

Francesco PetruccioneAnna NapoliElena FerraroIlya SinayskiyAntonino Messina

subject

Statistics and ProbabilityPhysicsQuantum PhysicsSpinsnon-Markovian spin modelsDynamics (mechanics)FOS: Physical sciencesGeneral Physics and AstronomyMarkov processSpectral densityStatistical and Nonlinear PhysicsConcurrencesymbols.namesakeModeling and SimulationQubitQuantum mechanicssymbolsBorn approximationQuantum Physics (quant-ph)Mathematical Physics

description

The dynamics of two interacting spins coupled to separate bosonic baths is studied. An analytical solution in Born approximation for arbitrary spectral density functions of the bosonic environments is found. It is shown that in the non-Markovian cases concurrence "lives" longer or reaches greater values.

10.1088/1751-8113/42/48/485301http://arxiv.org/abs/0906.1796