Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2000-07-24
Phys. Rev. Lett 86, 1881 (2001)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 2 figures, Revtex 3.0
Scientific paper
10.1103/PhysRevLett.86.1881
We study the quantum dimer model on the triangular lattice, which is expected to describe the singlet dynamics of frustrated Heisenberg models in phases where valence bond configurations dominate their physics. We find, in contrast to the square lattice, that there is a truly short ranged resonating valence bond (RVB) phase with no gapless collective excitations and with deconfined, gapped, spinons for a {\it finite} range of parameters. We also establish the presence of three crystalline phases in this system.
Moessner Richhild
Sondhi Shivaji L.
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