2005/09/30 by Manuela Capello, Federico Becca, Seiji Yunoki +1 · 2 citations
Materials Science · Physics and Astronomy · #Condensed matter physics #Electron #Electronic and Structural Properties of Oxides #Electronic structure #Function (biology) #Phase transition #Physics #Physics of Superconductivity and Magnetism #Plasmon #Quantum and electron transport phenomena #Quantum mechanics #Quasiparticle #Superconductivity #Tight binding #Vortex #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.73.245116
Reviewed and enlarged version, 6 pages, 7 figures
openalex publication_date 2006/06/27 · arxiv created 2006/07/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show, by using a correlated Jastrow wave function and a mapping onto a classical model, that the two-dimensional Mott transition in a simple half-filled one-band model can be unconventional and very similar to the binding-unbinding Kosterlitz-Thouless transition of vortices and antivortices, here identified by empty and doubly occupied sites. Within this framework, electrons strongly interact with collective plasmon excitations that induce anomalous critical properties on both sides of the transition. In particular, the insulating phase is characterized by a singular power-law behavior in the photoemission spectrum, which can be continuously connected to the fully projected insulating state relevant to strongly correlated low-energy models.