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O(3) nonlinear sigma model in 1+1 dimensions with matrix product states

URN to cite this document:
urn:nbn:de:bvb:355-epub-455111
DOI to cite this document:
10.5283/epub.45511
Bruckmann, Falk ; Jansen, Karl ; Kühn, Stefan
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Date of publication of this fulltext: 06 Apr 2021 14:12


Abstract

We numerically study the spectral properties, the entanglement and the zero-temperature phase structure at nonvanishing chemical potential of the O(3) nonlinear sigma model. Using matrix product states, a particular kind of one-dimensional tensor network state, we show that we are able to reach the asymptotic scaling regime and to reproduce the analytical predictions for the mass gap at vanishing ...

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