Fausto Rossi
Research activities include:
•Theoretical investigation of ultrafast processes in bulk and low-dimensional semiconductors.
•Analysis of quantum-transport phenomena in the high-field regime.
•Study of the linear and non-linear optical response of quantum-wires and dots in the presence of Coulomb-correlation effects
•Analysis of few-electron phenomena in artificial macroatoms.
•Microscopic modeling of state-of-the-art optoelectronic quantum devices, like quantum-cascade lasers.
•Implementation of quantum information processing with semiconductor nanostructures.
•Formal theory of stochastic simulations.
More specifically, Fausto Rossi has an extremely broad experience in the theoretical modeling of many-body processes in semiconductors as well as in the formal theory and mathematical foundation of quantum information/computation. Within semiconductor physics and technology, he has a long tradition in the theory and simulation of nonequilibrium phenomena both in bulk and in nanostructured materials/devices, e.g., semiconductor superlattices, quantum wells, wires and dots. In particular, he has wide-ranging experience in the theoretical modeling of ultrafast coherent quantum phenomena in semiconductors [F. Rossi and T. Kuhn, Rev. Mod. Phys. 74 (2002)].
Together with Tilmann Kuhn (Uni-Muenster) in 1992 he proposed the first Monte Carlo method for the microscopic simulation of ultrafast coherent phenomena in photoexcited semiconductors [T. Kuhn and F. Rossi, Phys. Rev. Lett. 69, 977 (1992)]. The method has proved to be quite successful in understanding the fundamental physical processes which govern the ultrafast optical response of semiconductor bulk and nanostructures; Indeed, together with Thomas Elsaesser and co-workers (TU-Berlin) he has been able to explain a number of state-of the-art coherent optical experiments [see, e.g., A. Leitenstorfer et al., Phys. Rev. Lett. 73, 1687 (1994)].
In collaboration with Roberto Cingolani (NNL, Lecce) and Guido Goldoni (Uni-Modena) he has extensively worked on the optical properties of low-dimensional structures (mainly quantum wires and dots), with particular attention to Coulomb-correlation effects [F. Rossi and E. Molinari, Phys. Rev. Lett. 76, 3642 (1996)]. In collaboration with Paolo Lugli and co-workers (Uni-Roma II) he has studied quantum-transport phenomena in mesoscopic systems, with particular attention to energy-relaxation and dephasing processes in quantum open systems [F. Rossi et al., Phys. Rev. Lett. 80, 3348 (1998)].
More recently, in collaboration with Fabio Beltram and co-workers (NEST, Pisa) he has been working on the design and simulation of semiconductor-based quantum-cascade lasers [R.C. Iotti and F. Rossi, Phys. Rev. Lett. 87, 146603 (2001)], both in the mid- and in the far infrared spectral region. This activity has led to the design and fabrication of the first Terahertz laser [R. Koehler et al., Nature 417, 156 (2002)]. Concerning quantum information processing, together with Paolo Zanardi and co-workers (ISI, Torino) Fausto Rossi has being working on potential solid-state implementation schemes. In particular, he has studied noiseless-encoding strategies in semiconductor quantum-dot arrays [P. Zanardi and F. Rossi, Phys. Rev. Lett. 81, 4752 (1998)] and, more recently, he has proposed the first all-optical quantum computer based on semiconductor macroatoms/molecules [E. Biolatti et al., Phys. Rev. Lett. 85, 5647 (2000)].
Research Activities