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Título: | Photon-mediated qubit interactions in one-dimensional discrete and continuous models |
Autor: | Díaz-Camacho, G.; Porras, Diego CSIC ORCID; García-Ripoll, Juan José CSIC ORCID | Fecha de publicación: | 23-jun-2015 | Editor: | American Physical Society | Citación: | Physical 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. | Descripción: | 11 págs.; 9 figs.; 1 app.; PACS number(s): 42.50.Pq, 42.50.Gy, 32.80.−t, 85.25.Cp | Versión del editor: | http://dx.doi.org/10.1103/PhysRevA.91.063828 | URI: | http://hdl.handle.net/10261/130433 | DOI: | 10.1103/PhysRevA.91.063828 | Identificadores: | doi: 10.1103/PhysRevA.91.063828 issn: 1094-1622 |
Aparece en las colecciones: | (CFMAC-IFF) Artículos |
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