11:00 AM  (CET) 1 December 2020. Prof. Dr. RONALD HANSON (University of Delft )

Quantum foundational experiments using diamond NV centers

​Entanglement – the property that particles can share a single quantum state - is arguably the most counterintuitive yet potentially most powerful element in quantum theory. The non-local features of quantum theory are highlighted by the conflict between entanglement and local causality discovered by John Bell. Decades of Bell inequality tests, culminating in a series of loophole-free tests in 2015, have confirmed the non-locality of nature [1].

Future quantum networks [2] may harness these unique features of entanglement in a range of exciting applications, such as quantum computation and simulation, secure communication, enhanced metrology for astronomy and time-keeping as well as fundamental investigations. To fulfill these promises, a strong worldwide effort is ongoing to gain precise control over the full quantum dynamics of multi-particle nodes and to wire them up using quantum-photonic channels.  At the same time, the newly gained control may provide novel opportunities for experiments targeting new fundamental insights.

Here I will introduce the field of quantum networks, highlight a few recent experiments and give a brief overview of relevant expertise and control in light of oissible future experiments touching foundational topics.



[1] For a popular account of these experiments, see e.g. Ronald Hanson and Krister Shalm, Scientific American 319, 58-65 (2018).

[2] Quantum internet: A vision for the road ahead, S Wehner, D Elkouss, R Hanson, Science 362 (6412), eaam9288 (2018).


Thank you for your interest in our research. Get in touch with us for any questions or comments regarding research in the interface of quantum mechanics, field theory and gravity.

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