Physics of Atomic Nuclei

, Volume 73, Issue 2, pp 339–344

Energy-level ordering for frustrated spin ladder models

Elementary Particles and Fields Theory

DOI: 10.1134/S1063778810020213

Cite this article as:
Hakobyan, T. Phys. Atom. Nuclei (2010) 73: 339. doi:10.1134/S1063778810020213


The Lieb—Mattis theorem about ordering of energy levels is generalized to frustrated antiferromagnetic spin-1/2 ladder model with diagonal and four-spin interaction.

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  1. 1.Yerevan State UniversityYerevanArmenia

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