Friedel Oscillations in the Open Hubbard Chain

Details Friedel Oscillations in the Open Hubbard Chain Friedel Oscillations in the Open Hubbard Chain

1998-05-11

arxiv.org/abs/cond-mat/9805123v1

Physics

Condensed Matter

Strongly Correlated Electrons

12 pages, 16 figures; submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.58.10225

Using the Density Matrix Renormalization Group (DMRG), we calculate critical exponents for the one-dimensional Hubbard model with open boundary conditions with and without additional boundary potentials at both ends. A direct comparison with open boundary condition Bethe Ansatz calculations provides a good check for the DMRG calculations on large system sizes. On the other hand, the DMRG calculations provide an independent check of the predictions of Conformal Field Theory, which are needed to obtain the critical exponents from the Bethe Ansatz. From Bethe Ansatz we predict the behaviour of the 1/L-corrected mean value of the Friedel oscillations (for the density and the magnetization) and the characteristic wave vectors, and show numerically that these conjectures are fulfilled with and without boundary potentials. The quality of the numerical results allows us to determine, for the first time, the behaviour of the coefficients of the Friedel oscillations as a function of the the Hubbard interaction.

Affiliated with

Also associated with

No associations

Rating

Friedel Oscillations in the Open Hubbard Chain 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 Friedel Oscillations in the Open Hubbard Chain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Friedel Oscillations in the Open Hubbard Chain will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-719181