The interplay between spontaneous symmetry breaking and topology can result in exotic
quantum states of matter. A celebrated example is the quantum anomalous Hall (QAH) state …

Moiré excitons are emergent optical excitations in two-dimensional semiconductors with
moiré superlattice potentials. Although these excitations have been observed on several …

Rydberg excitons, the solid-state counterparts of Rydberg atoms, have sparked
considerable interest with regard to the harnessing of their quantum application potentials …

Monolayer transition metal dichalcogenide (TMDC) semiconductors exhibit strong excitonic
optical resonances, which serve as a microscopic, noninvasive probe into their fundamental …

A mobile impurity immersed in a noninteracting Fermi sea is dressed by the gapless particle-
hole excitations of the fermionic medium. This conventional Fermi-polaron setting is well …

We study a mechanism to induce superconductivity in atomically thin semiconductors where
excitons mediate an effective attraction between electrons. Our model includes interaction …

We study systematically the role of temperature in the optical response of doped two-
dimensional semiconductors. By making use of a finite-temperature Fermi-polaron theory …

We present femtosecond pump-probe measurements of neutral and charged exciton optical
response in monolayer MoSe2 to resonant photoexcitation of a given exciton state in the …

The study of exciton polarons has offered profound insights into the many-body interactions
between bosonic excitations and their immersed Fermi sea within layered heterostructures …

We study induced pairing between two identical fermions mediated by an attractively
interacting quantum impurity in two-dimensional systems. Based on a stochastic variational …