Document Type
Article
Publication Date
1-26-2011
Abstract
We use the dynamical cluster approximation to understand the proximity of the superconducting dome to the quantum critical point in the two-dimensional Hubbard model. In a BCS formalism, Tc may be enhanced through an increase in the d-wave pairing interaction (Vd) or the bare pairing susceptibility (χ0d). At optimal doping, where Vd is revealed to be featureless, we find a power-law behavior of χ 0d(ω=0), replacing the BCS log, and strongly enhanced T c. We suggest experiments to verify our predictions. © 2011 American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
Recommended Citation
Yang, S., Fotso, H., Su, S., Galanakis, D., Khatami, E., She, J., Moreno, J., Zaanen, J., & Jarrell, M. (2011). Proximity of the superconducting dome and the quantum critical point in the two-dimensional Hubbard model. Physical Review Letters, 106 (4) https://doi.org/10.1103/PhysRevLett.106.047004