Theoretical study on controlling condensed matter properties by using strong light-matter coupling in cavity

Recent experimental advances have enabled the creation of setups where matter and quantized electromagnetic fields (photons) interact more strongly than the typical energy scale of the matter. Specifically, these strongly coupled light-matter systems have been achieved within the realm of cavity quantum electrodynamic (QED) materials, placing a material of interest inside a cavity of photon modes. The strong interaction between light and matter can significantly modify the material’s properties and even induce a transition to exotic phases, such as superconductors or quantum spin-liquids. These phases exhibit considerable potential for technological applications like quantum computation. However, most theoretical tools, with some exceptions, for studying strong light-matter interactions lack sufficient justification. In this project, we propose further development and application of a rigorous theoretical framework capable of addressing strongly coupled cavity QED materials. Success in this endeavor is anticipated to yield novel insights into exotic phases realized in cavity QED materials.

Faculty Supervisor:

Dvira Segal

Student:

Partner:

The University of Tokyo

Discipline:

Physics

Sector:

Education

University:

University of Toronto

Program: