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math.OA2025
McDuff superrigidity for group II factors
Juan Felipe Ariza Mejía, Ionuţ Chifan, Denis Osin +1
Developing new techniques at the interface of geometric group theory and von Neumann algebras, we identify the first examples of ICC groups whose von Neumann algebras are McDuf…
quant-ph2025★ 1 cited
Revealing quantum operator scrambling via measuring Holevo information on digital quantum simulators
Bin Sun, Geng-Bin Cao, Xi-Dan Hu +1
Quantum operator scrambling describes the spreading of local operators into the whole system in the picture of Heisenberg evolution, which is often quantified by the operator size…
math.GR2025
-Betti numbers of Dehn fillings
Nansen Petrosyan, Bin Sun
We initiate the study of the -Betti numbers of group-theoretic Dehn fillings. For a broad class of virtually special groups , we prove that the -Betti numbers of suffi…