Research

      Condensed Matter Theory

            Electron (hole) pair condensation, superconductivity  & other properties of Hubbard Nanoclusters

            Excitonic effects in  nanoclusters

            Negative refractive index metamaterials

      Publications & Conferences

            1. Thermodynamic properties, magnetism and Mott-Hubbard-like transitions in nanoscale clusters

                Journal of Magnetism and Magnetic Materials, 300 (2005) e585-e590

            2. Synergy conference (July-2006)

                Center for Nanoscale systems, Harvard University, Massachusetts, USA

            3. Exact study of charge-spin separation, pairing fluctuations, and pseudogaps in four-site Hubbard clusters

                Physical Review B 74, 024511 (2006)

            4. An exact study of pairing fluctuations and phase diagrams in four-site Hubbard Nanoclusters

                Journal of Computer-Aided Materials Design (2007) 14:103-108, Springer Netherlands.

            5. Exact thermodynamics of pairing and charge-spin separation crossovers in small Hubbard nanoclusters

                Physics Letters A 364 (2007) 57-65

            6. Phase separation and electron pairing in repulsive Hubbard clusters

                Physics Review B 75, 085109 (2007)

            7. APS (March 2007) Colorado, USA

            8. APS & AAPT Joint Fall Meeting ( October 2007), Connecticut, USA

            9. APS (March 2008) New Orleans, USA

          10. Coherent and incoherent pairing instabilities and spin-charge separation  in bipartite and nonbipartite nanocluster: Exact results

                Physical Review B 78, 075431 (2008)