Erio Tosatti

Erio Tosatti (born 9 November 1943 in Nonantola) is an Italian theoretical physicist active at the International School for Advanced Studies (SISSA), and at the Abdus Salam International Centre for Theoretical Physics (ICTP), both in Trieste, Italy. He is a broad-scope theorist who carried out research on a wide range of condensed matter physics phenomena. His early work dealt with optical properties,^[1] electron energy loss,^[2] theory of excitons^[3] and nonlocal dielectric response ^[4] in solids, including layer crystals such as graphite^[5] and semiconductors; charge- and spin-density-waves;^[6][7][8] surface physics in all its aspects, particularly reconstruction,^[9] roughening^[10] and melting,^[11] also in clusters;^[12] the prediction the Berry phase in fullerene;^[13][14] the first calculated STM map of graphite,^[15] now a standard in the field; matter at extreme pressures: carbon,^[16] oxygen,^[17][18] hydrogen,^[19] CO₂,^[20] iron at earth core conditions,^[21] water and ammonia at deep planetary conditions,^[22] pressure-induced insulator-metal transitions in layer compounds like MoS2.^[23] In nanophysics, he and his group predicted helical structures of metal nanowires;^[24][25] the spontaneous magnetism of metal nanocontacts,^[26] including the electronic circumstances for normal or ferromagnetic Kondo effect therein.^[27][28] His and his collaborator's theory of strongly correlated superconductivity^[29][30] was recently confirmed in compounds such as Cs3C60. Pioneering papers on quantum annealing^[31][32] are now basic to current developments in quantum computing. More recently he moved on to the theory of nanofriction,^[33] a field where he obtained the ERC Advanced Grant MODPHYSFRICT 2013–2019, and subsequently, as co-PI with an experimental group, another ERC Advanced Grant ULTRADISS 2019-2024 . More details of his current and past research activity can be found here.