Propose a number of new mechanism of single electron quantum process of small quantum structure, new programs and new ways of quantum control, the control of electricity, magnetism, and radiation, and explore the hot electron transport in small quantum system under the strong electric field, the magnetic transport under the irradiation of microwave and terahertz; develop the control of spin - orbit interaction on the spin quantum states in the quantum structure of regulation theory, research the effects of spin - orbit coupling on quantum transport, explore spin-induced optical polarization and spin quantum computing; study photon-assisted non-equilibrium and coherent transport, the time-dependent resonant tunneling, the electron correlation (Kondo, Coulomb blockade and electron-electron correlation effects) and quantum measurement in coupled quantum dot system; By the basic unit of solid-state quantum information processing - exciton and electronic spin states in limited small quantum systems, further study quantum noise in quantum devices, and interaction of limited small quantum systems with their surrounding (environment, such as phonon) as well as effects of environment on the quantum systems; establish a theory of dealing with quantum dissipation and quantum decoherence of limited small system.
