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arXiv · 1501.07536

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

Roberto Stassi·Simone De Liberato·Luigi Garziano·Bernardo Spagnolo·Salvatore Savasta
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Abstract

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.

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Roberto Stassi, Simone De Liberato, Luigi Garziano, Bernardo Spagnolo, Salvatore Savasta. 2015-01-29. Quantum control and long-range quantum correlations in dynamical Casimir arrays. https://doi.org/10.1103/physreva.92.013830

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