Topological Confinement and Superconductivity

Abstract

We derive a Kondo Lattice model with a correlated conduction band from a two-band Hubbard Hamiltonian. This mapping allows us to describe the emergence of a robust pairing mechanism in a model that only contains repulsive interactions. The mechanism is due to topological confinement and results from the interplay between antiferromagnetism and delocalization. By using Density-Matrix-Renormalization-Group (DMRG), we demonstrate that this mechanism leads to dominant superconducting correlations in a 1D-system.

4 pages, 4 figures

References in corpus (6)

• The density-matrix renormalization group
• New Trends in Density Matrix Renormalization
• Spin order in the one-dimensional Kondo and Hund lattices
• Robust d-wave Pairing Correlations in the Heisenberg Kondo Lattice Model
• Binding of holons and spinons in the one-dimensional anisotropic t-J model
• Superconductivity in zigzag CuO chains

Cited by in corpus (8)

• Superfluidity in nuclear systems and neutron stars
• Pair Density Wave correlations in the Kondo-Heisenberg Model
• Spin-incoherent behavior in the ground state of strongly correlated systems
• Photoinduced Hund excitons in the breakdown of a two-orbital Mott insulator
• Ground-state and spectral properties of an asymmetric Hubbard ladder
• Correlations and confinement of excitations in an asymmetric Hubbard ladder
• Pair binding and enhancement of pairing correlations in asymmetric Hubbard ladders
• Emergent Pair Density Wave Order Across a Lifshitz Transition