Ground State Phase Diagram of the One Dimensional S=1/2 XXZ Model with Dimerization and Quadrumerization

Details Ground State Phase Diagram of the One Dimensional S=1/2 XXZ Model with Dimerization and Quadrumerization Ground State Phase Diagram of the One Dimensional S=1/2 XXZ Model with Dimerization and Quadrumerization

1999-01-20

arxiv.org/abs/cond-mat/9901195v1

J. Phys. Soc. Jpn. 68 (1999) 2779

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 figures

Scientific paper

10.1143/JPSJ.68.2779

The one dimensional S=1/2 XXZ model with dimerization (1-j) and quadrumerization \delta is studied by the numerical exact diagonalization of finite size systems. Using the conformal field theory and the level spectroscopy method, we calculate the ground state phase diagram with XY-like anisotropy \Delta (0<\Delta<1). The ground states of this model contain the Haldane state, S=1 dimer state, S=1 large-D state and S=1/2 dimer state as limiting cases. The \Delta and \delta-dependence of the critical exponent \nu of the energy gap is determined from the conformal dimensions of excited states.

Affiliated with

Also associated with

No associations

Rating

Ground State Phase Diagram of the One Dimensional S=1/2 XXZ Model with Dimerization and Quadrumerization 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 Ground State Phase Diagram of the One Dimensional S=1/2 XXZ Model with Dimerization and Quadrumerization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground State Phase Diagram of the One Dimensional S=1/2 XXZ Model with Dimerization and Quadrumerization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-5920