Giorgio Frossati

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Giorgio Frossati (born September 25, 1939 in Genoa ) is an Italian low-temperature physicist and professor at the University of Leiden . From the 1970s he held several records for the lowest temperatures reached.

Frossati received his doctorate in 1978 from the University of Grenoble (dissertation: Obtention d'ultrabasses températures en régime continu, par dilution 3He-4He classique: application aux méthodes de réfrigération transitoire ) on 3He-4He mixed cooling (Dilution refrigerators). He has been researching such devices for generating low temperatures since 1970 and, among other things, he introduced heat exchangers with silver powder, which are very efficient due to their large surface area and are now widely used in such low-temperature cooling devices. Frossati achieved several low temperature records below 10 milli-Kelvin (mK) in 1977 in Grenoble 2.0 mK. In Leiden he built a cooling device that continuously reached 1.85 mK and had a record cooling capacity of 25 micro watts at 10 mK.

In 1980 he became a professor in Leiden (Kamerlingh Onnes laboratory).

In 1992 he founded the company Leiden Cryogenics with Alex Kamper to build his cooling equipment.

He was a Loeb Lecturer at Harvard.

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