Projected wavefunction study of Spin-1/2 Heisenberg model on the Kagome lattice

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dc.creatorRan, Ying
dc.creatorHermele, Michael
dc.creatorLee, Patrick A.
dc.creatorWen, Xiao-Gang
dc.date2006-11-15
dc.date.accessioned2026-07-07T07:52:13Z
dc.date.available2026-07-07T07:52:13Z
dc.descriptionWe perform a Gutzwiller projected wavefunction study for the spin-1/2 Heisenberg model on the Kagome lattice to compare energies of several spin-liquid states. The result indicates that a U(1)-Dirac spin-liquid state has the lowest energy. Furthermore, even without variational parameters, the energy turns out to be very close to that found by exact diagonalization. We show that such a U(1)-Dirac state represents a quantum phase whose low energy physics is governed by four flavors of two-component Dirac fermions coupled to a U(1) gauge field. These results are discussed in the context of recent experiments on ZnCu$_3$(OH)$_6$Cl$_2$.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0611414
dc.identifierhttp://arxiv.org/abs/cond-mat/0611414
dc.identifierPhys. Rev. Lett. 98, 117205 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.117205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125803
dc.subjectStrongly Correlated Electrons
dc.titleProjected wavefunction study of Spin-1/2 Heisenberg model on the Kagome lattice
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