Birender Singh

My research interests lie in the world of quantum materials with fascinating ground state properties such as charge density waves, quantum spin liquids, quantum magnetism, superconductivity and topology. The underlying properties of these materials are probed using inelastic light Raman scattering technique under different external perturbations such as temperature, pressure, and magnetic field, where the intricate competing interactions between different degrees of freedom such as spin, lattice, charge, and orbital degrees of freedom and spontaneous symmetry breaking are of particular research interest. I also use computational tools, such as density functional theory (DFT) and density functional perturbation theory (DFPT), to understand the electronic and structural properties of the materials. DFT allows us to predict new potential materials and understanding their fascinating ground state properties. DFPT provides insight into the coupling of lattice with other degrees of freedom and broken symmetries. Overall research aims to enhance our understanding of the intricate and complex behavior of the quantum materials and pave the way for the development of new quantum technologies.

Alongside this, I have a strong research focus on quantum optics to understand and exploit nonclassical light-matter interactions (exploring quantum correlations in light fields through second-order correlation functions g(2)(τ)), coherence properties, and correlated photon emission for applications in quantum spectroscopy, sensing, and quantum information.