Exploring emergent quantum phenomena is one of the central topics in condensed matter physics. Many quantum effects arise from the many-body coupling between electrons and various quasiparticles in crystals. A paradigmatic example is the conventional mechanism of superconductivity proposed by Bardeen et al., in which electron–phonon interactions mediate the formation of Cooper pairs.

Traditional studies have predominantly focused on correlating intrinsic interparticle interactions within individual bulk. A critical open question, however, remains: can spatially separated yet proximally coupled systems establish long-range quasiparticle interactions and thereby give rise to unprecedented quantum phenomena?

The rapid advancement of two-dimensional materials in recent years has provided an ideal experimental platform for investigating such intersystem coupling. Benefiting from the rich diversity of interfacial coupling configurations and the pronounced enhancement of quantum effects under reduced dimensionality, coupled two-dimensional homo-/heterostructures represent an exceptional arena for exploring correlated many-body interactions involving multiple degrees of freedom beyond electronic charge.

Our team focuses on constructing coupled two-dimensional systems and, through a combined electrical, optical, and magnetic experimental methods, performing systematic studies on key scientific issues such as interfacial magnetism and quasiparticle coupling effects. Our recent efforts are concentrated on two primary research directions:

(1) Artificial construction of quantum magnetic orders in moiré superlattices;

(2) Precise manipulation of macroscopic quantum phenomena via quantum fluctuations.