Subdimensional Entanglement Entropy: from Geometric-Topological Response to Entanglement-Induced Mixed-State Holography
This work introduces Subdimensional Entanglement Entropy (SEE) to probe how geometry and topology shape quantum matter properties. It shows SEE distinguishes between geometric and topological phases, links bulk entanglement to mixed-state symmetries, and establishes a 'transparent composite symmetry' that holographically encodes higher-dimensional topological orders.