My current research efforts focus on the field of theoretical/computational condensed matter physics. Strongly correlated systems are one of the most intensively studied areas of research in condensed matter physics. In recent years a wide variety of experimental observations and theoretical predictions have found that many phase transitions in real materials show complex interesting states that are nontrivial. Studying the origin of exotic quantum phases such as coexistent and inhomogeneous phases, quantum criticality, secondary ordered phases close to quantum critical points, etc is the major trend in the field. These exotic phenomena in strongly correlated systems occur due to competing complex interactions of the spin, charge, lattice, and orbital degrees of freedom. Well known examples of this behavior are the colossal magneto-resistive materials, that display changes in their resistivity by orders of magnitude with the application of small magnetic fields; the heavy fermions with huge effective electronic masses; the magnetic semiconductors with the possibility of manipulating both the spin and the charge degrees of freedom; and the high temperature superconductors that conduct electricity without any resistance above the temperature of liquid nitrogen.

Theoretical tools and numerical simulation can gain insight and predict physical and chemical processes. Experimental observations by involving direct collaboration with experimental groups can make the world different. Among these techniques WEIN2k electronic structure calculation plays a particularly important role. This approach captures the interplay of atomic motion and chemical bond evolution in the context of electronic density functional theory (DFT). This method has remarkable success to a variety of problems in condensed matter and chemical physics, materials science, the geosciences, chemistry and biochemistry, and molecular dynamics.