61 citations · 263 across the 8 of their papers we have counts for
8 papers
Parent Hamiltonians for lattice Halperin states from free-boson conformal field theories
Anna Hackenbroich, Hong-Hao Tu
We introduce a family of many-body quantum states that describe interacting spin one-half hard-core particles with bosonic or fermionic statistics on arbitrary one- and two-dimensi…
Excited States in Spin Chains from Conformal Blocks
Benedikt Herwerth, Germán Sierra, Hong-Hao Tu +1
We develop a method of constructing excited states in one dimensional spin chains which are derived from the Wess-Zumino-Witten Conformal Field Theory (CFT) using a paren…
Hexagon-singlet solid ansatz for the spin-1 kagome antiferromagnet
Wei Li, Andreas Weichselbaum, Jan von Delft +1
We perform a systematic investigation on the hexagon-singlet solid (HSS) states, which are a class of spin liquid candidates for the spin-1 kagome antiferromagnet. With the Schwing…
All spin-1 topological phases in a single spin-2 chain
Augustine Kshetrimayum, Hong-Hao Tu, Roman Orus
Here we study the emergence of different Symmetry-Protected Topological (SPT) phases in a spin-2 quantum chain. We consider a Heisenberg-like model with bilinear, biquadratic, bicu…
Chiral projected entangled-pair state with topological order
Shuo Yang, Thorsten B. Wahl, Hong-Hao Tu +2
We show that projected entangled-pair states (PEPS) can describe chiral topologically ordered phases. For that, we construct a simple PEPS for spin-1/2 particles in a two-dimension…
Criticality in Translation-Invariant Parafermion Chains
Wei Li, Shuo Yang, Hong-Hao Tu +1
In this work we numerically study critical phases in translation-invariant parafermion chains with both nearest- and next-nearest-neighbor hopping terms. The model c…