Exact Ground State of the 2D Hubbard Model at Half Filling for $U=0^{+}$

Details Exact Ground State of the 2D Hubbard Model at Half Filling for $U=0^{+}$ Exact Ground State of the 2D Hubbard Model at Half Filling for $U=0^{+}$

2000-07-03

arxiv.org/abs/cond-mat/0007020v2

Solid State Communication 117, 451 (2001)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, typos in equation 5 corrected

Scientific paper

10.1016/S0038-1098(00)00504-4

We solve analytically the $N\times N$ square lattice Hubbard model for even $N$ at half filling and weak coupling by a new approach. The exact ground state wave function provides an intriguing and appealing picture of the antiferromagnetic order. Like at strong coupling, the ground state has total momentum $K_{tot}=(0,0)$ and transforms as an $s$ wave for even $N/2$ and as a $d$ wave otherwise.

Affiliated with

Also associated with

No associations

Rating

Exact Ground State of the 2D Hubbard Model at Half Filling for $U=0^{+}$ 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 Exact Ground State of the 2D Hubbard Model at Half Filling for $U=0^{+}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exact Ground State of the 2D Hubbard Model at Half Filling for $U=0^{+}$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-728302