Riccardo Fantoni was born in Livorno on the 30 August 1970, lived in Pisa until 1995 where graduated "cum Laude" in the department of Physics of the University. Then moved as a graduate student to the University of Illinois at Urbana/Champaign until 2000 working as a Teaching and Research Assistant and in 1997 got a Master in Physics. Moved to Trieste and in 2004 got a Ph.D. in Physics. From 2005 to 2008 worked at the Chemical Physics department of the University "Ca' Foscari" of Venice as a postdoctoral research and teaching fellow. From 2009 to 2012 worked at the National Institute for Theoretical Physics of the University of Stellenbosch as a postdoctoral research fellow. In 2018 got a full professorship as a mathematics teacher in the secondary italian school of second degree. In 2019 won the habilitation as an associate professor in theoretical physics of matter in the italian university system.
Aim of his research is to develop analytical and computational methods for condensed and soft matter starting from the fundamental many-body equations. Apart from the few analytically exactly solvable models his principal instruments, guided by the various sum-rules, are Integral Equation Theory, Density Functional Theory, Thermodynamic Perturbation Theory, Association Theory, and Monte Carlo simulations which can find exact properties of many-body systems. He is combining these approaches to create new methods and to test the accuracy of calculations on materials. Current studied materials include colloidal suspensions, ionic liquids, polymer mixtures, the electron fluid, the polaron, and boson fluids (like 4He, 4He-H2 mixtures, ...). He investigates the structure and thermodynamic properties of the materials including their phase transitions like the gas-liquid-(glass)-solid first order ones and the superfluid-superconducting second order ones, the percolation threshold, the clustering, the localization, the demixing, and properties like the polydispersity.