Prize Talk: Aneesur Rahman Prize for Computational Physics. Dualities for Strong Electron Correlation

ORAL · Invited

Abstract

In recent years, my research group has focused on strong electron correlation, a problem that after almost 100 years of Schrodinger equation, remains pervasive and hinders many practical applications. In this talk, I will discuss our recent efforts to tackle it using dualities that convert strongly correlated systems into weakly correlated ones. String operators, as those used in the Wigner-Jordan transformation, play a central role in the theory. Despite their many-body character, string matrix elements can be obtained with low polynomial computational cost. I will present proof of principle applications of the theory to model spin systems where the interaction strength can be easily tuned and encompass interesting physics.

* Supported by NSF, DOE, The Welch Foundation, and Gaussian Inc.

Publication: Strong-Weak Duality via Jordan-Wigner Transformation: Using Fermionic Methods for Strongly Correlated su(2) Spin Systems, T. M. Henderson, G. P. Chen, and G. E. Scuseria, J. Chem. Phys. 157, 194114 (2022). https://arxiv.org/abs/2209.04563
Restoring permutational invariance in the Jordan-Wigner transformation, T. M. Henderson, Fei Gao, and G. E. Scuseria, Mol. Phys. in press. https://arxiv.org/abs/2307.15149

Presenters

  • Gustavo E Scuseria

    Rice University

Authors

  • Gustavo E Scuseria

    Rice University