2008/04/24 by Y. Arredondo, Yesenia Arredondo, H. Monien +1
Mathematics · Physics and Astronomy · #Charge (physics) #Charge density #Condensed matter physics #Correlation function (quantum field theory) #Coulomb #Density matrix renormalization group #Function (biology) #Heterojunction #Hubbard model #Luttinger liquid #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Realization (probability) #Renormalization group #Statistical physics #Theoretical and Computational Physics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.78.115425
6 pages, 7 figures
arxiv created 2008/04/24 · openalex publication_date 2008/09/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study inhomogeneous one-dimensional Hubbard systems using the density-matrix renormalization-group method (DMRG). Different heterostructures are investigated whose configuration is modeled varying parameters such as the on-site Coulomb potential and introducing local confining potentials. We investigate their Luttinger liquid properties through the parameter K_\ensuremathρ, which characterizes the decay of the density-density correlation function at large distances. Our main goal is the investigation of possible realization of engineered materials and the ability to manipulate physical properties by choosing an appropriate spatial and/or chemical modulation.