CURRICULUM VITAE

Detailed CV (PDF)

Academic History

  • Post Doctoral Fellow (Louisiana State University, Baton Rouge, LA, Aug 2010-Present)
  • Ph. D.(Indian Institute of Science, Bangalore, 2006-2010)
  • M. Sc. Engineering (Indian Institute of Science, Bangalore, 2006)
  • B. Tech.(Indian Institute of Technology, Kanpur, 2004)

Research Interests : Condensed Matter Theory

  • Unconventional Superconductivity
  • Quantum Criticality
  • Cold Atoms Physics
  • Metal-Insulator Transition
  • Computational Methods for Strongly Correlated Systems

Publications

  • Repulsive fermions in optical lattices: Phase separation versus coexistence of antiferromagnetism and d-wave superfluidity
    S. Y. Chang, S. Pathak and N. Trivedi
    Physical Reviw A 85, 013625 (2012)

  • Role of the van Hove Singularity in the Quantum Criticality of the Hubbard Model
    K.-S. Chen, S. Pathak, S.-X. Yang, S.-Q. Su, D. Galanakis, K. Mikelsons, M. Jarrell and J. Moreno
    Physical Reviw B 84, 245107 (2011)

  • Possible high-temperature superconducting state with a d+id pairing symmetry in doped graphene
    S. Pathak, V. B. Shenoy, and G. Baskaran
    Physical Review B, 81, 085431, (2010)

  • Competition between Antiferromagnetic and Superconducting States, Electron-Hole Doping Asymmetry, and Fermi-Surface Topology in High Temperature Superconductors
    S. Pathak, V. B. Shenoy, M. Randeria, and N. Trivedi
    Physical Review Letters, 102 ,027002 (2009)

  • Size dependence of thermal expansion of nanostructures
    S. Pathak and V. B. Shenoy
    Physical Review B, 72, 113404 (2005)

Archives/Preprints

  • Application of the DCA-Dual Fermion Approach to the Falicov-Kimball Model
    S. Pathak, S.-X. Yang, M. Jarrell and J. Moreno
    (Under Preparation)
  • A General Variational Approach to Strongly Correlated Spin Singlet States
    S. Pathak and V. B. Shenoy
    (Under Preparation)

  • Modeling of carbon nanotube FETs (Preprint)

Book Chapter

  • H. Fotso, S. Yang, K. Chen, S. Pathak, J. Moreno, M. Jarrell, K. Mikelsons, E. Khatami and D. Galanakis, Dynamical Cluster Approximation in Theoretical Methods for Strongly Correlated Systems, edited by A. Avella and F. Mancini (Springer Series in Solid-State Sciences, 171, 2011)

Conference/Symposium Proceedings

  • GP-GPU Computing: Massively Parallel Accelerated Science
    C.W. Moore, D.Z. Poliakov, J. Caprino, S. Abu Asal, K.R. Rajagopalan, S.-X. Yang, E.C. Ekuma, S. Feng, Y. Fang, K.-M. Tam, S. Pathak, B. Thakur, K. Tomko, J. Moreno, R. Hall and M. Jarrell
    Proceedings of Louisiana EPSCoR RII LA-SiGMA 2011 Symposium, p.57

Research Skills

  • Techniques of quantum condensed matter physics, for example, diagrammatic perturbation theory, renormalization group, slave particle mean field theories, renormalized mean field theory.
  • Computational techniques, for example, Dynamical Mean Field Theory (DMFT), Dynamical Cluster Approximation (DCA), Dual Fermion Method, Parquet Formalism, variational Monte Carlo, molecular dynamics.
  • High Performance Computing: Experienced in developing large scale codes on parallel platforms. Currently, I am leading a GPU (Graphical Processing Unit) team to develop an efficient Variational Monte Carlo (VMC) code.

Talks

  • "Role of the van Hove Singularity in the Quantum Criticality of the Hubbard model" at the Department of Physics, Northeastern University (Boston, MA) (June 22, 2011)
  • "Repulsive Fermions in the Optical Lattices: Phase separation or Coexistence of Antiferromagnetism and d-Superfluidity?" at APS March Meeting 2011 at Dallas, TX (March 21-25, 2011)
  • "Role of the van Hove Singularity in the Quantum Criticality of the Hubbard model" at APS March Meeting 2011 at Dallas, TX (March 21-25, 2011)
  • "Transport Properties near Quantum Critical Point in 2D Hubbard Model" at APS March Meeting 2011 at Dallas, TX (March 21-25, 2011)
  • "Competition between antiferromagnetism and superconductivity, electron-hole doping asymmetry and Fermi Surface topology in cuprates" at APS March Meeting 2009 at Pittsburgh, PA (March 16-20, 2009)
  • "Ground State Studies of Strongly Correlated Superconductors" at the Institute of Mathematical Sciences (IMSc) at Chennai, India (Aug 14, 2008)

Posters

  • "Variational Monte Carlo on GPGPU" in the LA-SiGMA All Hands Meeting, Baton Rouge, LA (Aug 05, 2011)

  • "Competition between antiferromagnetic and superconducting states, electron-hole doping asymmetry, and "Fermi Surface" topology in high temperature superconductors" in the conference Recent Progress in Many Body Theories at the Ohio State University, Columbus, OH (July 27-31, 2009).

Awards & Honors

Selected for India-U.S. Student Visitation Program 2009 awarded by Indo-U.S. Science and Technology Forum (IUSSTF) & American Physical Society (APS). Visited the department of Physics at Ohio State University under the program.