DMRG studies of critical SU(N) spin chains

Details DMRG studies of critical SU(N) spin chains DMRG studies of critical SU(N) spin chains

2008-06-16

arxiv.org/abs/0806.2563v3

Ann. Phys. (Berlin) 17, 922 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

14 pages, 8 figures; final version, to appear in Ann. Phys

Scientific paper

10.1002/andp.200810326

The DMRG method is applied to integrable models of antiferromagnetic spin chains for fundamental and higher representations of SU(2), SU(3), and SU(4). From the low energy spectrum and the entanglement entropy, we compute the central charge and the primary field scaling dimensions. These parameters allow us to identify uniquely the Wess-Zumino-Witten models capturing the low energy sectors of the models we consider.

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