Matches in SemOpenAlex for { <https://semopenalex.org/work/W2014923454> ?p ?o ?g. }
- W2014923454 abstract "We provide strong numerical evidence, using improved variational wave functions, for a ground state with vanishing spin gap in the spin-$1/2$ quantum Heisenberg model on the kagome lattice. Starting from the algebraic $U(1)$ Dirac spin liquid state proposed by Y. Ran $et al.$ [Phys. Rev. Lett. $98$, $117205$ ($2007$)] and iteratively applying a few Lanczos steps, we compute the lowest $S=2$ excitation constructed by exciting spinons close to the Dirac nodes. Our results are compatible with a vanishing spin gap in the thermodynamic limit and in consonance with a power-law decay of long distance spin-spin correlations in real space. The competition with a gapped (topological) spin liquid is discussed." @default.
- W2014923454 created "2016-06-24" @default.
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- W2014923454 date "2014-01-16" @default.
- W2014923454 modified "2023-10-14" @default.
- W2014923454 title "Vanishing spin gap in a competing spin-liquid phase in the kagome Heisenberg antiferromagnet" @default.
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- W2014923454 doi "https://doi.org/10.1103/physrevb.89.020407" @default.
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