title: Complex quantum networks as structured environments: engineering and probing.
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.
authors.affiliation: Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014, Turun Yliopisto, Finland.
authors.forename: Johannes
authors.initials: J
authors.lastname: Nokkala
authors.affiliation: IFISC (UIB-CSIC), Instituto de Fisica Interdisciplinary Sistemas Complejos, UIB Campus, 07122 Palma de Mallorca, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Galve
authors.affiliation: IFISC (UIB-CSIC), Instituto de Fisica Interdisciplinary Sistemas Complejos, UIB Campus, 07122 Palma de Mallorca, Spain.
authors.forename: Roberta
authors.initials: R
authors.lastname: Zambrini
authors.affiliation: Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014, Turun Yliopisto, Finland.
authors.forename: Sabrina
authors.initials: S
authors.lastname: Maniscalco
authors.affiliation: Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014, Turun Yliopisto, Finland.
authors.forename: Jyrki
authors.initials: J
authors.lastname: Piilo
mesh_terms: D003198:Computer Simulation; D004777:Environment; D015233:Models, Statistical; D009991:Oscillometry; D011789:Quantum Theory; D012815:Signal Processing, Computer-Assisted