2020/06/30 by A. M. Tsvelik
Physics and Astronomy · #Advanced Condensed Matter Physics #Cooper pair #Fermion #MAJORANA #Particle physics #Physics #Quantum many-body systems #Quantum mechanics #Statistical physics #Superconductivity #Topological Materials and Phenomena #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.125.197202
published as Phys. Rev. Lett. 125, 197202 (2020) · 7 pages, 7 figures, typos removed, explanations added
arxiv created 2020/09/18 · openalex publication_date 2020/11/03 · arxiv updated 2020/11/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It is suggested that networks of Majorana-Cooper pair boxes connected by metallic nanowires can simulate various exotic states of matter. In this simulation Majorana-Cooper boxes play the role of effective spins S=1/2 and the metallic connections generate the Kondo screening and the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction. Depending on what prevails-whether it is the Kondo effect or the RKKY exchange, one will have either a Kondo lattice or an effective spin model. The list of exotic states includes the famous hexagonal Kitaev model, a generalization of this model for a Kondo lattice, and various spin models with three-spin interactions. Special emphasis is made on the discussion of the Kondo lattice scenario.