Speaker: Chandan Setty(Rice University)

Host: Rebecca Flint

Title: Correlated Topological Quantum Materials: Design and Realization

Abstract

Quantum material design bridges quantum science and emerging quantum technologies. Recently, new conceptual paradigms have come to prominence, offering rich platforms to predict, design, and test unusual materials for quantum applications. This talk focuses on the intersection of coulomb interactions and electronic topology as one such paradigm. Specifically, I will present a general approach where electron correlations and crystalline symmetry drive gapless topological phases [1,2]. I'll validate this approach by exploring strongly correlated lattice models with symmetries that promote these phases. Finally, I will outline a procedure to identify materials for realizing correlation-driven topological semimetal phases in experiments [1]. The findings will demonstrate the potential of the proposed design principle to guide the search for new topological phases and materials in strongly correlated systems.

[1] Chen, CS et al  Nature Physics (2022)

DOI: https://doi.org/10.1038/s41567-022-01743-4

[2] Huang, CS* et al Nature Physics  (2024)

DOI: https://doi.org/10.1038/s41567-023-02362-3

Funding

Air Force Office of Scientific Research under Grant No. FA9550-21-1-0356

U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0018197 

Robert A. Welch Foundation Grant No. C-1411.

Bio

Chandan Setty is currently a postdoctoral researcher in theoretical quantum matter physics at Rice University and Rice Center for Quantum Materials. He completed his doctoral work at Purdue University in 2015 followed by postdoctoral positions at the University of Illinois at Urbana-Champaign and University of Florida.