2004/05/03 by Eugene Demler, Werner Hanke, Shou-Cheng Zhang · 6 citations
Materials Science · Physics and Astronomy · #Advanced Chemical Physics Studies #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/revmodphys.76.909
Review article. 81 pages
arxiv created 2004/05/03 · openalex publication_date 2004/11/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
Antiferromagnetism and superconductivity are both fundamental and common states of matter. In many strongly correlated systems, including the high-Tc cuprates, the heavy-fermion compounds, and the organic superconductors, they occur next to each other in the phase diagram and influence each other's physical properties. The SO(5) theory unifies these two basic states of matter by a symmetry principle and describes their rich phenomenology through a single low-energy effective model. In this paper, the authors review the framework of the SO(5) theory and compare it with numerical and experimental results.