Condensed Matter Mathematical Physics // 2020

Unconventional Superconductivity

Theory of Cooper Pairing & Many-Body Formalism

Unconventional Superconductivity

Abstract

NIUS research project exploring the theoretical framework of Unconventional Superconductivity under Prof. Rajdeep Sensarma at TIFR. Investigated Bogoliubov transformations, Path Integrals, and Green's functions for spin-coupled Cooper pairing.

Table of Contents / Outline

Project Overview

Carried out under the prestigious National Initiative on Undergraduate Science (NIUS) at the Tata Institute of Fundamental Research (TIFR), Mumbai under Prof. Rajdeep Sensarma.

Theoretical Tools & Focus

  • Bogoliubov-de Gennes (BdG) Hamiltonian: Diagonalization techniques for inhomogeneous superconducting systems and quasiparticle spectra.
  • Many-Body Green’s Functions & Path Integrals: Formulating finite-temperature Matsubara techniques and Feynman diagrams for pairing instabilities.
  • Symmetry of Order Parameter: D-wave and unconventional spin-triplet pairing mechanisms beyond standard BCS phonon-mediated theories.