Research topics

First Principles Methods for Open Systems and Application to Emerging Nanoelectronics
Traditionally Quantum Chemistry deals the closed systems where energy and number of particles are fixed. With the development of materials science, nanotechnology and quantum computing, the needs for the accurate calculations of open systems are increasingly acute. A first-principle method has been developed to simulate the electronic dynamics of open systems. It follows the time evolution of reduced single electron density matrix, and has been employed to simulate the transient currents through molecular and nano-devices.