Quantum control and long-range quantum correlations in dynamical Casimir arrays

The recent observation of the dynamical Casimir effect in a modulated superconducting waveguide, coronating thirty years of world-wide research, empowered the quantum technology community with a powerful tool to create entangled photons on-chip. In this work we show how, going beyond the single wave...

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Bibliographic Details
Published in:arXiv.org 2015-01
Main Authors: Stassi, Roberto, De Liberato, Simone, Garziano, Luigi, Spagnolo, Bernardo, Savasta, Salvatore
Format: Article
Language:English
Subjects:
Linear systems
Photons
Quantum theory
Variations
Online Access:Get full text
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Summary:The recent observation of the dynamical Casimir effect in a modulated superconducting waveguide, coronating thirty years of world-wide research, empowered the quantum technology community with a powerful tool to create entangled photons on-chip. In this work we show how, going beyond the single waveguide paradigm using a scalable array, it is possible to create multipartite nonclassical states, with the possibility to control the long-range quantum correlations of the emitted photons. In particular, our finite-temperature theory shows how maximally entangled \(NOON\) states can be engineered in a realistic setup. The results here presented open the way to new kinds of quantum fluids of light, arising from modulated vacuum fluctuations in linear systems.
ISSN:2331-8422
DOI:10.48550/arxiv.1501.07536