Complex quantum networks as structured environments: engineering and probing

• DOI: 10.1038/srep26861
• ArXiv number: arXiv:1503.04635

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.

• Full paper

Related research projects

QuProCS

Quantum Probes for Complex Systems

P.I.: Roberta Zambrini

We are on the verge of a new scientific and technological era as the first quantum simulators able to investigate physical systems that cannot be studied classically are about to be built …

NOMAQ

Non-Markovian quantum evolutions in structured environments

P.I.: Roberta Zambrini

The field of quantum information has usually treated dissipation and decoherence as unwanted effects to be minimized for the successful completion of quantum information tasks. Recently the possibility to actually control and …