6533b839fe1ef96bd12a5b7a

RESEARCH PRODUCT

Emergence of non-Markovianity in the emission process of an atom in a half-cavity

T TufarelliM KimSFrancesco Ciccarello

subject

PhysicsQuantum PhysicsProcess (computing)FOS: Physical sciencesAtom (order theory)Markov processopen quantum systemsParameter spacenon-Markovianity open quantum systems spontaneous emission waveguide QEDCondensed Matter Physicsnon-MarkovianityAtomic and Molecular Physics and Opticssymbols.namesakePerfect mirrorwaveguide QEDQuantum mechanicsPath (graph theory)symbolsWaveguide (acoustics)Quantum Physics (quant-ph)spontaneous emissionQuantumMathematical Physics

description

We study quantum non-Markovianity in the early stage of the emission process of a two-level atom coupled to a semi-infinite waveguide, where the waveguide termination behaves as a perfect mirror. Specifically, we restrict to the analysis of the process for times shorter than twice the time delay t_d, where t_d is the duration of a round trip along the atom-mirror path. We show the emergence of a threshold in the parameters space separating the Markovian and non-Markovian regions.

10.1088/0031-8949/2014/t160/014043http://arxiv.org/abs/1409.1468