Projected wave functions for fractionalized phases of quantum spin systems

2002/04/02 by D. A. Ivanov, Д. А. Иванов, T. Senthil · 5 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Theoretical and Computational Physics #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.66.115111

published as Phys. Rev. B 66, 115111 (2002) · 10 pages, 3 figures

arxiv created 2002/04/02 · openalex publication_date 2002/09/17 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The Gutzwiller projection allows the construction of an assortment of variational wave functions for strongly correlated systems. For quantum spin S=1/2 models, Gutzwiller-projected wave functions have resonating-valence-bond structure and may represent states with fractional quantum numbers for the excitations. Using insights obtained from field-theoretical descriptions of fractionalization in two dimensions, we construct candidate wave functions of fractionalized states by projecting specific superconducting states. We explicitly demonstrate the presence of topological order in these states.

Citations

• Theory of Underdoped Cuprates
• Experimental Realization of a 2D Fractional Quantum Spin Liquid
• Physics of projected wavefunctions

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