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Título

Photon-mediated qubit interactions in one-dimensional discrete and continuous models

AutorDíaz-Camacho, G.; Porras, D.; García-Ripoll, Juan José
Fecha de publicación23-jun-2015
EditorAmerican Physical Society
CitaciónPhysical Review A - Atomic, Molecular, and Optical Physics 91: 063828 (2015)
Resumen© 2015 American Physical Society. In this work we study numerically and analytically the interaction of two qubits in a one-dimensional waveguide, as mediated by the photons that propagate through the guide. We develop strategies to assert the Markovianity of the problem, the effective qubit-qubit interactions, and their individual and collective spontaneous emission. We prove the existence of collective Lamb shifts that affect the qubit-qubit interactions and the dependency of coherent and incoherent interactions on the qubit separation. We also develop the scattering theory associated with these models and prove single-photon spectroscopy does probe the renormalized resonances of the single- and multiqubit models, in sharp contrast to earlier toy models in which individual and collective Lamb shifts cancel.
Descripción11 págs.; 9 figs.; 1 app.; PACS number(s): 42.50.Pq, 42.50.Gy, 32.80.−t, 85.25.Cp
Versión del editorhttp://dx.doi.org/10.1103/PhysRevA.91.063828
URIhttp://hdl.handle.net/10261/130433
DOI10.1103/PhysRevA.91.063828
Identificadoresdoi: 10.1103/PhysRevA.91.063828
issn: 1094-1622
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