27 citations · 64 across the 3 of their papers we have counts for
3 papers
cond-mat.str-el2014★ 16 cited
A generalized perspective on non-perturbative linked cluster expansions
K. Coester, S. Clever, F. Herbst +2
We identify a fundamental challenge for non-perturbative linked cluster expansions (NLCEs) resulting from the reduced symmetry on graphs, most importantly the breaking of translati…
cond-mat.str-el2014★ 27 cited
Non-linear bond-operator theory and 1/d expansion for coupled-dimer magnets I: Paramagnetic phase
Darshan G. Joshi, Kris Coester, Kai P. Schmidt +1
For coupled-dimer Heisenberg magnets, a paradigm of magnetic quantum phase transitions, we develop a systematic expansion in 1/d, the inverse number of space dimensions. The expans…
cond-mat.mtrl-sci2014★ 21 cited
Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet CHNCuBr
Tao Hong, K. P. Schmidt, K. Coester +14
We present specific-heat and neutron-scattering results for the \emph{S}=1/2 quantum antiferromagnet (dimethylammonium)(3,5-dimethylpyridinium)CuBr. The material orders magneti…