4 papers
Local-moment magnets on all close-packed lattices are equivalent
Sam Studdy, Alwyn Jose Raja, R. Ganesh
The Heisenberg antiferromagnet on the fcc lattice is a canonical example of frustration. The fcc lattice is but one of an infinite number of close-packed structures, all of which h…
Exact Fractionalized Ground States in an Extended Spin-1 Kitaev Chain
Alwyn Jose Raja, R. Ganesh
Inspired by the Affleck-Kennedy-Lieb-Tasaki (AKLT) model, we present exact solutions for a spin-1 chain with Kitaev-like couplings. We consider an expanded Kitaev model with biline…
Spin-basis wavefunctions for the one-dimensional Kitaev model
Alwyn Jose Raja, Rajesh Narayanan, R. Ganesh
Magnetic phases with quantum entanglement are often expressed in terms of parton wavefunctions. Relatively few examples are known where wavefunctions can be directly written down i…
Entropic sampling in frustrated magnets: role of self-intersecting spaces
Alwyn Jose Raja, R. Ganesh
Frustrated magnets typically possess a large space of classical ground states. If this degeneracy is not protected by symmetry, thermal fluctuations may `select' certain states via…