164 citations · 584 across the 14 of their papers we have counts for
14 papers
Entanglement entropy for the one-dimensional flat-band ferromagnetic Tasaki model: spontaneous symmetry breaking with one type-B Goldstone mode
Huan-Qiang Zhou, Qian-Qian Shi, Ian P. McCulloch +1
The one-dimensional flat-band ferromagnetic Tasaki model exhibits spontaneous symmetry breaking from to with one type-B Goldstone mode, featuring that th…
Schwinger boson mean field study of the - Heisenberg quantum antiferromagnet on the triangular lattice
Dag-Vidar Bauer, J. O Fjærestad
We use Schwinger boson mean field theory (SBMFT) to study the ground state of the spin- triangular-lattice Heisenberg model with nearest () and next-nearest () neighbo…
Dimer and fermionic formulations of a class of colouring problems
J. O. Fjaerestad
We show that the number Z of q-edge-colourings of a simple regular graph of degree q is deducible from functions describing dimers on the same graph, viz. the dimer generating func…
The 3-edge-colouring problem on the 4-8 and 3-12 lattices
J. O. Fjaerestad
We consider the problem of counting the number of 3-colourings of the edges (bonds) of the 4-8 lattice and the 3-12 lattice. These lattices are Archimedean with coordination number…
Classical and quantum dimers on the star lattice
John Ove Fjaerestad
We consider dimers on the star lattice (aka the 3-12, Fisher, expanded kagome or triangle-honeycomb lattice). We show that dimer coverings on this lattice have Z_2 arrow and pseudo…
Ground-state fidelity of Luttinger liquids: A wave functional approach
John Ove Fjaerestad
We use a wave functional approach to calculate the fidelity of ground states in the Luttinger liquid universality class of one-dimensional gapless quantum many-body systems. The gr…