Quantum effects on electronic transport in semiconductor nanostructures are studied by calculating the conductance, using a nearest-neighbor tight binding Hamiltonian and a recursive Green's function approach. The effects of structure geometry, electrical potentials, impurities, and magnetic fields on the conductance of nanochannels, quantum wires, and dots are explored. By improving the understanding of charge transport fundamentals in such structures, these theoretical studies support the future development of ultra-small, ultra-fast electronic devices. Dr. Ron Cosby leads the condensed matter physics group hat includes Dr. Yong Joe and Dr. Mahfuza Khatun and a team of graduate students. Computational  work of the group is accomplished locally on computing facilities at Ball State and on the Convex 3880 supercomputer at the Center for Supercomputing Applications at theUniversity of Illinois.  Other faculty involved in this area of research include Dr. Antonio Cancio, Dr. Arkadiy Satanin, and Dr. Ioan Sturzu.