23 citations · 23 across the 2 of their papers we have counts for
4 papers · 1 filter
Spin Triplet Excitations for a Valence Bond Solid on the Kagome Lattice
Bohm-Jung Yang, Yong Baek Kim, Jaejun Yu +1
One of the most promising candidate ground states for the quantum antiferromagnetic Heisenberg model on the Kagome lattice is the valence bond solid (VBS) with a 36-site unit cell.…
Bond and Neel order and fractionalization in ground states of easy-plane antiferromagnets in two dimensions
Kwon Park, Subir Sachdev
We describe the zero temperature phases and phase boundaries of an effective lattice model for frustrated, easy-plane, spin S=1/2 quantum antiferromagnets. The model contains state…
Ground states of quantum antiferromagnets in two dimensions
Subir Sachdev, Kwon Park
We explore the ground states and quantum phase transitions of two-dimensional, spin S=1/2, antiferromagnets by generalizing lattice models and duality transforms introduced by Sach…
Bond operator theory of doped antiferromagnets: from Mott insulators with bond-centered charge order, to superconductors with nodal fermions
Kwon Park, Subir Sachdev
The ground states and excitations of two-dimensional insulating and doped Mott insulators are described by a bond operator formalism. While the method represents the degrees of fre…