30 citations · 44 across the 2 of their papers we have counts for
5 papers
Symmetry-respecting real-space renormalization for the quantum Ashkin-Teller model
Aroon O'Brien, Stephen D. Bartlett, Andrew C. Doherty +1
We use a simple real-space renormalization group approach to investigate the critical behavior of the quantum Ashkin-Teller model, a one-dimensional quantum spin chain possessing a…
Infinitely dimensional Lax structure for one-dimensional Hubbard model
Vladislav Popkov, Tomaz Prosen
We report a two-parametric irreducible infinitely dimensional representation of the Lax integrability condition for the fermi Hubbard chain. Besides being of fundamental interest,…
Coulombic Charge Ice
Paul McClarty, Aroon O'Brien, Frank Pollmann
We consider a classical model of charges on a pyrochlore lattice in the presence of long range Coulomb interactions. This model first appeared in the early literature on ch…
Strongly correlated fermions on a kagome lattice
Aroon O'Brien, Frank Pollmann, Peter Fulde
We study a model of strongly correlated spinless fermions on a kagome lattice at 1/3 filling, with interactions described by an extended Hubbard Hamiltonian. An effective Hamiltoni…
Metal-insulator transition of the Kagome lattice fermions at 1/3 filling
Satoshi Nishimoto, Masaaki Nakamura, Aroon O'Brien +1
We discuss the metal-insulator transition of the spinless fermion model on the Kagomé lattice at 1/3-filling. The system is analyzed using exact diagonalization, the density-matrix…