2D multipartite valence bond states in quantum anti-ferromagnets

Enrique Rico (Corresponding author), Hans-Jürgen Briegel

Publications: Contribution to journalArticlePeer Reviewed


A quantum anti-ferromagnetic spin-1 model is characterised on a 2D lattice with the following requirements: (i) The Hamiltonian is made out of nearest neighbour interactions. (ii) It is homogeneous, translational and rotational invariant. (iii) The ground state is a real singlet state of SU(2) (non-chiral). (iv) It has a local spin-1 representation. Along the way to characterise the system, connections with classical statistical mechanics and integrable models are explored. Finally, the relevance of the model in the physics of low dimensional anti-ferromagnetic Mott–Hubbard insulators is discussed.
Original languageEnglish
Pages (from-to)2115-2131
Number of pages17
JournalAnnals of Physics
Issue number9
Publication statusPublished - 2008

Austrian Fields of Science 2012

  • 103026 Quantum optics


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