A planar extrapolation of the correlation problem that permits pairing

Details A planar extrapolation of the correlation problem that permits pairing A planar extrapolation of the correlation problem that permits pairing

2000-01-26

arxiv.org/abs/cond-mat/0001385v1

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 2 figures

Scientific paper

10.1103/PhysRevB.62.13376

It was observed previously that an SU(N) extension of the Hubbard model is dominated, at large N, by planar diagrams in the sense of 't Hooft, but the possibility of superconducting pairing got lost in this extrapolation. To allow for this possibility, we replace SU(N) by U(N,q), the unitary group in a vector space of quaternions. At the level of the free energy, the difference between the SU(N)and U(N,q) extrapolations appears only to first nonleading order in N.

Affiliated with

Also associated with

No associations

Rating

A planar extrapolation of the correlation problem that permits pairing 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 A planar extrapolation of the correlation problem that permits pairing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A planar extrapolation of the correlation problem that permits pairing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-54562