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arXiv · 1503.04635

Complex quantum networks as structured environments: engineering and probing

Johannes Nokkala·Fernando Galve·Roberta Zambrini·Sabrina Maniscalco·Jyrki Piilo
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Abstract

We consider structured environments modeled by bosonic quantum networks and investigate the probing of their spectral density, structure, and topology. We demonstrate how to engineer a desired spectral density by changing the network structure. Our results show that the spectral density can be very accurately detected via a locally immersed quantum probe for virtually any network configuration. Moreover, we show how the entire network structure can be reconstructed by using a single quantum probe. We illustrate our findings presenting examples of spectral densities and topology probing for networks of genuine complexity.

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Johannes Nokkala, Fernando Galve, Roberta Zambrini, Sabrina Maniscalco, Jyrki Piilo. 2015-03-16. Complex quantum networks as structured environments: engineering and probing. https://doi.org/10.1038/srep26861

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