Does Simple Two-Dimensional Hubbard Model Account for High-Tc Superconductivity in Copper Oxides?

Details Does Simple Two-Dimensional Hubbard Model Account for High-Tc Superconductivity in Copper Oxides? Does Simple Two-Dimensional Hubbard Model Account for High-Tc Superconductivity in Copper Oxides?

2007-08-25

arxiv.org/abs/0708.3416v1

J. Phys. Soc. Jpn. 76 (2007) 113708

Physics

Condensed Matter

Strongly Correlated Electrons

4pages including 4 figures

Scientific paper

10.1143/JPSJ.76.113708

We reexamine whether the essence of high-Tc superconductivity is contained in doped Hubbard models on the square lattice by using recently developed pre-projected Gaussian-basis Monte Carlo method. The superconducting correlations of the dx2-y2 wave symmetry in the ground state at distance r decays essentially as inverse cubic of r. The upper bound of the correlation at long distances estimated by this unbiased method is 0.001, indicating that recent extensions of dynamical mean-field theories and variational methods yielded at least an order of magnitude overestimates of it. The correlations are too weak for the realistic account of the cuprate high-Tc superconductivity.

Affiliated with

Also associated with

No associations

Rating

Does Simple Two-Dimensional Hubbard Model Account for High-Tc Superconductivity in Copper Oxides? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Does Simple Two-Dimensional Hubbard Model Account for High-Tc Superconductivity in Copper Oxides?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Does Simple Two-Dimensional Hubbard Model Account for High-Tc Superconductivity in Copper Oxides? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-20855