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Título: | Probing the spectral density of a dissipative qubit via quantum synchronization |
Autor: | Giorgi, Gian Luca CSIC ORCID ; Galve, Fernando CSIC ORCID CVN; Zambrini, Roberta CSIC ORCID | Fecha de publicación: | 17-nov-2016 | Editor: | American Physical Society | Citación: | Physical Review - Section A - Atomic Molecular and Optical Physics 94: 052121 (2016) | Resumen: | The interaction of a quantum system, which is not accessible by direct measurement, with an external probe can be exploited to infer specific features of the system itself. We introduce a probing scheme based on the emergence of spontaneous quantum synchronization between an out-of-equilibrium qubit, in contact with an external environment, and a probe qubit. Tuning the frequency of the probe leads to a transition between synchronization in phase and antiphase. The sharp transition between these two regimes is locally accessible by monitoring the probe dynamics alone and allows one to reconstruct the shape of the spectral density of the environment. | Versión del editor: | http://doi.org/10.1103/PhysRevA.94.052121 | URI: | http://hdl.handle.net/10261/157751 | DOI: | 10.1103/PhysRevA.94.052121 | ISSN: | 1050-2947 | E-ISSN: | 1094-1622 |
Aparece en las colecciones: | (IFISC) Artículos |
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quantum_synchronization_Giorgi.pdf | 958,99 kB | Adobe PDF | Visualizar/Abrir |
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