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  1. Article

    Open Access

    From rotating atomic rings to quantum Hall states

    Considerable efforts are currently devoted to the preparation of ultracold neutral atoms in the strongly correlated quantum Hall regime. However, the necessary angular momentum is very large and in experiments...

    M. Roncaglia, M. Rizzi, J. Dalibard in Scientific Reports (2011)

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    Article

    Stable particles in anisotropic spin-1 chains

    Motivated by field-theoretic predictions we investigate the stable excitations that exist in two characteristic gapped phases of a spin-1 model with Ising-like and single-ion anisotropies. The sine-Gordon the...

    L. Campos Venuti, C. Degli Esposti Boschi… in The European Physical Journal B - Condense… (2006)

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    Article

    On \(\mathsf{c = 1}\) critical phases in anisotropic spin-1 chains

    Quantum spin-1 chains may develop massless phases in presence of Ising-like and single-ion anisotropies. We have studied c = 1 critical phases by means of both analytical techniques, including a map** of the la...

    C. Degli Esposti Boschi, E. Ercolessi… in The European Physical Journal B - Condense… (2003)

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    Article

    Multiparticle continuum in the excitation spectrum of the compound CsNiCl

    Recent neutron scattering experiments on CsNiCl3 reveal some features that are not well described by the standard nonlinear σ model, nor by numerical simulations, for isolated S = 1 spin chains. In particular, i...

    E. Ercolessi, G. Morandi, M. Roncaglia in The European Physical Journal B - Condense… (2003)