Journal
PHYSICAL REVIEW B
Volume 75, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.75.134519
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Using numerical dynamic cluster quantum Monte Carlo results, we study a simple approximation for the pairing interaction of a two-dimensional Hubbard model with an on-site Coulomb interaction U equal to the bandwidth. We find that with an effective temperature-dependent coupling (U) over bar (T) and the numerically calculated spin susceptibility chi(K-K-'), the d-wave pairing interaction is well approximated by 3/2 (U) over bar (2)chi(K-K-').
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