Local probe for connectivity and coupling strength in quantum complex networks

Johannes Nokkala*, Sabrina Maniscalco, Jyrki Piilo

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
108 Downloads (Pure)


We develop a local probe to estimate the connectivity of complex quantum networks. Our results show how global properties of different classes of complex networks can be estimated – in quantitative manner with high accuracy – by coupling a probe to a single node of the network. Here, our interest is focused on probing the connectivity, i.e. the degree sequence, and the value of the coupling constant within the complex network. The scheme combines results on classical graph theory with the ability to develop quantum probes for networks of quantum harmonic oscillators. Whilst our results are proof-of-principle type, within the emerging field of quantum complex networks they may have potential applications for example to the efficient transfer of quantum information or energy or possibly to shed light on the connection between network structure and dynamics.

Original languageEnglish
Article number13010
Pages (from-to)1-8
JournalScientific Reports
Issue number1
Publication statusPublished - 1 Dec 2018
MoE publication typeA1 Journal article-refereed


Dive into the research topics of 'Local probe for connectivity and coupling strength in quantum complex networks'. Together they form a unique fingerprint.

Cite this