Constructing Large and Structured Decoherence-Free Subspaces in Hybrid Quantum Systems
The research develops a framework to build large decoherence-free subspaces by coupling quantum matter to a dissipative bosonic mode. By using Lie algebra representation theory, researchers constructed operators with exponentially many null states. These subspaces exhibit exotic properties like long-range correlations and volume-law entanglement, showing how dissipation can engineer complex quantum structures.