Contents/conteúdo

Seminário de Computação e Informação Quântica   RSS

19/04/2017, 14:30 — 15:30 — Sala P9, Pavilhão de Matemática
, University of the Basque Country

Quantumness in quantum synchronization

We introduce the concept of degree of quantumness in quantum synchronization, a measure of the quantum natu re of synchronization in quantum systems. Following techniques from quantum information to quantify the quantumness of a dynamics, we propose a measure based on the number of non-commuting observables that synchronize. The degree of quantumness is compatible with already existing synchronization measurements, and it captures different physical properties. We illustrate the definition in a quantum system consisting of two weakly interacting cavity-qubit systems, which are coupled via the exchange of bosonic excitations between the cavities, and the synchronization of the expectation values of the Pauli operators is studied. We additionally propose a feasible superconducting circuit system in which the experiment can be carried out. Finally, we briefly discuss the degree of quantumness in the synchronization between two quantum van der Pol oscillators.


Apoiado por: Phys-Info (IT), SQIG (IT), CeFEMA e CAMGSD, com financiamento de FCT, FEDER and EU FP7, especificamente via o Doctoral Programme in the Physics and Mathematics of Information (DP-PMI), os projectos estratégicos FCT PEst-OE/EEI/LA0008/2013 e UID/EEA/50008/2013, o projecto IT QuSim, o projecto CRUP-CPU CQVibes, a Acção de Coordenação FP7 QUTE-EUROPE (600788) e os projectos FP7 Landauer (GA 318287) e PAPETS (323901).

Instituto de TelecomunicaçõesCAMGSDFCT7th Framework Programme