Direct observation of quantum correlations and entanglement in 2D frustrated magnets

Demonstrate and directly measure nontrivial quantum correlations and entanglement in two-dimensional frustrated magnetic systems, developing and applying photonic or cavity-based opto‑magnonic probes capable of resolving these quantum features at the nanoscale.

Background

Two-dimensional magnetic crystals enable strong light–matter interactions and tunable magnetism via gating, strain, and heterostructuring, which may facilitate new photonic approaches to interrogate correlated magnetic states.

Although theory has long predicted nontrivial quantum correlations and entanglement in 2D frustrated magnets, a definitive, direct experimental observation has not yet been achieved. Photonic platforms combined with opto‑magnonic cavities and polaritonic probes could provide the necessary sensitivity and spatial resolution to reveal these elusive quantum signatures.