@informaq.bsky.socialDemonstrates that U(1) symmetries from topological Hamiltonians like the toric code cannot be made on-site with finite ancillae but become on-siteable with infinite-dimensional rotors, reconciling lattice and quantum field theory anomaly predictions.
@informaq.bsky.socialSuccessfully extracted topological invariants via momentum-selective measurements on superconducting qubits. Mapped extended SSH model phase diagram with quantized winding numbers, validating direct band-topology tomography on quantum processors.
@ipamucla.bsky.socialFall 2026 is here at @ipamucla.bsky.social !
We’re excited to welcome researchers from around the world to IPAM for the Quantum Topology, Character Varieties and Low-Dimensional Geometry (QT2026) Long Program.
Learn more: lnkd.in/g7AGMtc2
@informaq.bsky.socialExceptional topological defects in atomic arrays can survive strong magnetic fields due to light-cone singularities in photon-mediated interactions, enabling novel control of band topology through lattice geometry and external magnetic control.
@informaq.bsky.socialNew operator-space protocol detects and classifies 1D symmetry-protected topological phases from local boundary dynamics. Requires only Hamiltonian and symmetry data—no exact diagonalization, ground state, or entanglement spectrum needed.