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Coexistence of superconductivity with partially filled stripes in the Hubbard model
Hao Xu, Chia-Min Chung, Mingpu Qin +3
Combining the complementary capabilities of two of the most powerful modern computational methods, we find superconductivity in both the electron- and hole-doped regimes of the two…
Pairing Properties of the --- model
Shengtao Jiang, Douglas J. Scalapino, Steven R. White
We study the pairing properties of the two-dimensional --- model, where and are second and third neighbor hoppings, at a doping level . Recen…
Enhanced Pairing in the "Checkerboard" Hubbard Ladder
George Karakonstantakis, Erez Berg, Steven R. White +1
We study signatures of superconductivity in a 2--leg "checkerboard" Hubbard ladder model, defined as a one--dimensional (period 2) array of square plaquettes with an intra-plaquett…
Friedel Oscillations and Charge Density Waves in Chains and Ladders
Steven R. White, Ian Affleck, Douglas J. Scalapino
The density matrix renormalization group method for ladders works much more efficiently with open boundary conditions. One consequence of these boundary conditions is groundstate c…
Why do stripes form in doped antiferromagnets and what is their relationship to superconductivity?
Steven R. White, D. J. Scalapino
Experiments show evidence for stripe formation in the underdoped cuprates. Here we discuss recent numerical calculations on the t-J model which tell us about the mechanism responsi…
The one-dimensional Bose-Hubbard Model with nearest-neighbor interaction
Till D. Kuehner, Steven R. White, H. Monien
We study the one-dimensional Bose-Hubbard model using the Density-Matrix Renormalization Group (DMRG).For the cases of on-site interactions and additional nearest-neighbor interact…