Current affiliations

• Position

  PhD

  Company

  Northeastern University

  Duration

  2004 - Present

City:

Boston, Massachusetts, United States

Hub:

None chosen

My recent research interest is to focus on the high-Tc superconductors and other strongly correlated systems. After twenty years of extensive research, the microscopic origin of the superconducting binding energy (pairing mechanism) is still controversial. The main reason behind this complexity is the strong electron-electron corrlations and thus resulting a vast phase diagram of these systems. In conventional superconductors, the lattice vibration of the ions (called ‘phonon’ in field theory) provides the necessary glue for two electrons to bind in a pair (condensation) and thus they move resistanceless (superconductors). In contrast, in high-Tc superconductors a ‘pairing glue’ mechanism is even in debate (read Anderson’s RVB model), whereas a spin-fluctuation mechanism of the electron-electron pairing (the fluctuating spin moments of the electrons) is also majorly believed.

A generic model to calculate the strong-correlations effect in condensed matter physics is difficult to build. My current goal is to find a numerically manageable model to calculate the self-energy of high-Tc superconductors and similar strongly correlated materials in a self-consistent scheme. My future goal is to use the self-energy to explain all avaiable spectroscopy resuls in a consistent way.