Accessing novel properties of gauge theories using link models

Debasish Banerjee^1*

¹Theory Division, Saha Institute of Nuclear Physics, Kolkata, West Bengal, India

* Presenter:Debasish Banerjee, email:debasish.banerjee@saha.ac.in

Models based on gauge theories are crucial in the ab-initio description of many phenomena occurring in a variety of systems in Nature from condensed matter to particle physics. Just as in models of quantum Hall effect, high-Temperature superconductivity, so as in quantum electrodynamics and chromodynamics, gauge fields interacting with fermions play a crucial role. Existing models and methods are often inadequate to explore the physics in various parameter regimes. In this talk, we give an overview of how quantum link models --- generalized lattice gauge theories constructed with finite dimensional Hilbert spaces --- can be used to access many novel static and dynamical features of strongly interacting systems. Some such models can be used to obtain a better understanding of physical phenomena, while others show qualitatively new features.

Keywords: Lattice Gauge Theories, Quantum Monte Carlo, Quantum Scars, New Phases of Matter