2024/09/26 by Shai M. Chester, Chester, Shai M., Zohar Komargodski +1 · 1 citation
Computer Science · Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Optical Network Technologies #Quantum Information and Cryptography #Strongly Correlated Electrons (cond-mat.str-el)
paper · pdf · doi:10.48550/arxiv.2409.17913
openalex publication_date 2024/09/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Quantum Electrodynamics in 2+1 dimensions (QED3) with two Dirac fermions displays time reversal symmetry, nontrivial SPT phases and anomalies. The fate of this theory in its strongly coupled regime has been debated extensively. Surprisingly, we find that gluing together the phase diagrams of two standard Wilson-Fisher O(4) theories suffices to reproduce all the SPT phases, anomalies, and semi-classical limits. A central mechanism behind it is ``SPT absorption''. The patching of the O(4) transitions makes very concrete predictions for the behavior of the theory in its strongly coupled limits; for instance, the θ=π sigma model with S3 topology appears due to monopole condensation.