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cond-mat.str-el2026
Quantum Hall Ferromagnetism in a Cavity Vacuum
Ceren B. Dag, Luis Brey, Ganpathy Murthy +1
We uncover a continuous phase transition in a quantum Hall ferromagnet (QHF) at filling factor , driven by vacuum fluctuations of a cavity. Our analysis starts with a Landau l…
cond-mat.mes-hall2026
Signatures of the Quantum Geometric Dipole of Interlayer Excitons in Counterflow Conductivity
Fanuel I. Mendez, Luis Brey, H. A. Fertig
Collective excitations of many-body electron systems can carry internal structure, supporting novel quantum geometric and topological properties. Among these are a quantum geometri…