Non-Ergodicity of the 1D Heisenberg Model

Details Non-Ergodicity of the 1D Heisenberg Model Non-Ergodicity of the 1D Heisenberg Model

2002-09-23

arxiv.org/abs/cond-mat/0209527v1

Phys. Sta. Sol. (b) 236, 396 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures

Scientific paper

10.1002/pssb.200301688

The relevance of zero-energy functions, coming from zero-energy modes and present in the structure of bosonic Green's functions, is often underestimated. Usually, their values are fixed by assuming the ergodicity of the dynamics, but it can be shown that this is not always correct. As the zero-energy functions are connected to fundamental response properties of the system under analysis (specific heat, compressibility, susceptibility, etc.), their correct determination is not an irrelevant issue. In this paper we present some results regarding the zero-energy functions for the Heisenberg chain of spin-1/2 with periodic boundary conditions as functions of the number of sites, temperature and magnetic field. Calculations are pursued for finite chains, using equations of motion, exact diagonalization and Lanczos technique, and the extrapolation to thermodynamic limit is studied.

Affiliated with

Also associated with

No associations

Rating

Non-Ergodicity of the 1D Heisenberg Model 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 Non-Ergodicity of the 1D Heisenberg Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-Ergodicity of the 1D Heisenberg Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-576483