2021/10/26 by Moses A. Schindler, Schindler, Moses A., Stella T. Schindler +3
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Quantum Mechanics and Non-Hermitian Physics
paper · pdf · doi:10.48550/arxiv.2110.14009
openalex publication_date 2021/10/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Finite-density QCD and many other field theories with sign problems have a PT-type symmetry. After a brief introduction to PT-symmetric field theories, a real dual representation for PT-symmetric scalar field theories with complex actions is derived. We show that PT-symmetric field theories can exhibit exotic behavior, including sinusoidally modulated propagators, disorder lines, and spatially inhomogeneous pattern-forming phases. We discuss the interplay of duality, PT-symmetry and pattern formation using a ϕ4 model and Z(N) spin model with sign problems as examples. These behaviors may occur in finite-density QCD and related models.