Abstract
We investigate the correlation length of the one-dimensional S=1/2 Heisenberg antiferromagnet by the thermal Bethe-ansatz method proposed by Koma. The numerical result shows that the correlation length diverges as T-1 at low temperatures with logarithmic corrections. This logarithmic correction can be explained by conformal field theory.
Original language | English |
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Pages (from-to) | 8217-8223 |
Number of pages | 7 |
Journal | Physical Review B |
Volume | 43 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1991 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics