2018 Quantum physics of the systems with ultra-short potentials: Introduction to a new analytically solvable model, R. Saravanan*, D. Kumar, A. Chakraborty, Mol. Phys. (under review) (link). 2018 Exact wave-packet dynamics of a Gaussian wave function in two flat states coupled at a point, R. Saravanan*, A. Chakraborty, (to be submitted) (link). 2018 Reaction-diffusion system: Fate of a Gaussian probability distribution on flat potential, R. Saravanan*, A. Chakraborty, Physica A (link). 2018 Exact diffusion dynamics of a Gaussian distribution transiting between two flat states, S. Rajendran, A. Chakraborty, Chem.Phys., (submitted).