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arXiv · 1401.6401

Topological order-by-disorder in orbitally degenerate dipolar bosons in zig-zag lattice

G. Sun·T. Vekua
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Abstract

Spinor bosons offer conceptually simple picture of macroscopic quantum behavior of topological order-by-disorder: Paramagnetic state of two-component dipolar bosons in orbitally degenerate zig-zag lattice is unstable against infinitezimal quantum fluctuations of orbitals towards developing non-local hidden order. Adjacent to the topological state locally correlated exact ground state with spontaneously quadrupoled lattice constant is realized for the broad parameter regime.

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G. Sun, T. Vekua. 2014-01-24. Topological order-by-disorder in orbitally degenerate dipolar bosons in zig-zag lattice. https://doi.org/10.1103/physrevb.90.094414

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