The recent observation of the dynamical Casimir effect in a modulated superconductingwaveguide, culminating thirty years ofworldwide research, empowered the quantum technology community with a 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 presented here open the way to new kinds of quantum fluids of light, arising from modulated vacuum fluctuations in linear systems.
Stassi, R., De Liberato, S., Garziano, L., Spagnolo, B., Savasta, S. (2015). Quantum control and long-range quantum correlations in dynamical Casimir arrays. PHYSICAL REVIEW A, 92(1), 013830-1-013830-9 [10.1103/PhysRevA.92.013830].
Quantum control and long-range quantum correlations in dynamical Casimir arrays
STASSI, Roberto;SPAGNOLO, Bernardo;
2015-01-01
Abstract
The recent observation of the dynamical Casimir effect in a modulated superconductingwaveguide, culminating thirty years ofworldwide research, empowered the quantum technology community with a 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 presented here open the way to new kinds of quantum fluids of light, arising from modulated vacuum fluctuations in linear systems.File | Dimensione | Formato | |
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