338 citations · 408 across the 2 of their papers we have counts for
2 papers
cond-mat.str-el2000★ 70 cited
A quantum Monte Carlo study of the one-dimensional ionic Hubbard model
Tim Wilkens, Richard M. Martin
Quantum Monte Carlo methods are used to study a quantum phase transition in a 1D Hubbard model with a staggered ionic potential (D). Using recently formulated methods, the electron…
cond-mat1999★ 338 cited
Polarization and localization in insulators: generating function approach
Ivo Souza, Tim Wilkens, Richard M. Martin
We develop the theory and practical expressions for the full quantum-mechanical distribution of the intrinsic macroscopic polarization of an insulator in terms of the ground state…