2 citations · 4 across the 2 of their papers we have counts for
3 papers
cond-mat.stat-mech2006★ 2 cited
Quantum Monte Carlo scheme for frustrated Heisenberg antiferromagnets
Jacek Wojtkiewicz
When one tries to simulate quantum spin systems by the Monte Carlo method, often the 'minus-sign problem' is encountered. In such a case, an application of probabilistic methods is…
cond-mat.stat-mech2004
Some properties of frustrated spin systems: extensions and applications of Lieb-Schupp approach
Jacek Wojtkiewicz
Lieb and Schupp have obtained, using certain version of ``spin-reflection positivity'' method, a number of ground-state properties for frustrated Heisenberg models. One group of th…
cond-mat.str-el2003★ 2 cited
Phase diagram of the two-dimensional t-t' Falicov-Kimball model
Jacek Wojtkiewicz
The ground-state phase diagram of two-dimensional Falicov-Kimball model with nearest-neighbour and next-nearest-neighbour hoppings (characterized by t,t' constants, respectively) h…