Phase structure of non-commutative scalar field theories
Nuclear Physics B Elsevier 605:1-3 (2001) 395-424
The phase diagram of the hexagonal lattice quantum dimer model
(2001)
Ising models of quantum frustration
Physical Review B American Physical Society (APS) 63:22 (2001) 224401
Short-ranged RVB physics, quantum dimer models and Ising gauge theories
(2001)