15 citations · 31 across the 3 of their papers we have counts for
3 papers
cond-mat.stat-mech2023★ 15 cited
Exceptional Points in the Baxter-Fendley Free Parafermion Model
Robert A. Henry, Murray T. Batchelor
Certain spin chains, such as the quantum Ising chain, have free fermion spectra which can be expressed as the sum of decoupled two-level fermionic systems. Free parafermions are a…
cond-mat.stat-mech2019★ 9 cited
Some ground-state expectation values for the free parafermion Z(N) spin chain
Zi-Zhong Liu, Robert A. Henry, Murray T. Batchelor +1
We consider the calculation of ground-state expectation values for the non-Hermitian Z(N) spin chain described by free parafermions. For N=2 the model reduces to the quantum Ising…
cond-mat.quant-gas2014★ 7 cited
Negative Refraction of Excitations in the Bose-Hubbard Model
R. A. Henry, J. Q. Quach, C-H. Su +2
Ultracold atoms in optical lattices provide a unique opportunity to study Bose- Hubbard physics. In this work we show that by considering a spatially varying onsite interaction it…