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13.05.2022, 10.00 am: Italy-Germany WEBinar Series (WEBS) – “Sensors and Measurements” (event #4)


Moving Sensors from Classical to Quantum
Paolo Di Natale, CNR-Istituto Nazionale di Ottica, Firenze

Quantum Metrology and Derived Quantum Technology Applications
Nicolas Spethmann, PBT-Physikalisch-Technische Bundesanstalt, Braunschweig

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Videos of previous webinars available on youtube



Moving Sensors from Classical to Quantum
Paolo DE NATALE (CNR-INO, Istituto Nazionale di Ottica, Firenze)

Photonic sensors have improved hand-in-hand with the tremendous progress of optical technologies in the last few decades. Their improvement often faces limits imposed by classical noise. Therefore, further improvements require overcoming the shot noise limit. Several application areas, as well as many novel set-ups are emerging for this new class of sensors.I will show several examples of application areas and set-ups and discuss how, in the next future, novel quantum sensors could be part of an extended suite of Quantum Technologies.

Quantum Metrology at PTB and Derived Quantum Technology Applications
Nicolas SPETHMANN, PBT (Physikalisch Technisch Anstalt), Braunschweig

Quantum technologies will have a substantial impact on worldwide economy and society. PTB as the National Metrology Institute of Germany has a long tradition in quantum technology and performs world-leading research in several fields, with a focus on quantum sensing and metrology. Examples include, but are not limited to, precise quantum standards for electrical quantities, ion traps, sensitive sensors for magnetic fields, single photon detectors and ultrastable and precise optical clocks. In my talk, I will report on QT applications and industry cooperations at PTB, as for example opticlock, the first user-friendly and robust optical atomic clock demonstrator. I will furthermore report on current activities at PTB concerning the development of metrology for firstly quantum computing based both on laser-cooled ions as well as superconducting platforms, and secondly in the field of quantum communication. These development are an important prerequisite for industrial development and applications of quantum technologies.


Dr. Paolo De Natale is research director at INO, National Institute of Optics, of CNR, and member of the Directive Council of LENS, Firenze, Italy. In the years 2007-2021 was director of the National Institute of Optics of the Italian National Research Council (INO-CNR, former INOA). He is the Italian representative in the Quantum Community Network (QCN) Board of the EU Flagship on Quantum Technologies and in the Optronics CapTech of the European Defense Agency-EDA. Scientific interests include photonics, atomic and molecular physics, nonlinear optics and quantum technologies. He is the author of more than 360 publications, owns 9 patents and is a co-founder of two former CNR spin-off companies, ppqSense srl and QTI srl. He is Fellow of IEEE (since 2011) and OSA (since 2015).

Dr. Nicolas Spethmann is head of the Quantum Technology Competence Center (QTZ) at the Physikalisch-Technische Bundesanstalt (PTB). He obtained his PhD in 2012 in the group “quantum technology with single neutral atoms” of Prof. Dieter Meschede at University of Bonn. Subsequently he obtained a Marie-Curie outgoing fellowship at University of California, Berkeley performing research dealing with force sensing at the quantum limit and quantum-limited coupling of cold atomic gases via photons. In 2017 he joined PTB in the research group “quantum logic spectroscopy” of Prof. Piet Schmidt where he works on the aluminum ion quantum logic clock. Since 2019 he heads the Quantum Technology Competence Center (QTZ) at PTB, which pursues the transfer of quantum technology from the fundamental research laboratory into application together with partners from industry and academia.