Chain breaking and Kosterlitz-Thouless scaling at the many-body localization transition in the random-field Heisenberg spin chain
Despite tremendous theoretical efforts to understand subtleties of the many-body
localization (MBL) transition, many questions remain open, in particular concerning its
critical properties. Here we make the key observation that MBL in one dimension is
accompanied by a spin freezing mechanism which causes chain breaks in the
thermodynamic limit. Using analytical and numerical approaches, we show that such chain
breaks directly probe the typical localization length and that their scaling properties at the …
localization (MBL) transition, many questions remain open, in particular concerning its
critical properties. Here we make the key observation that MBL in one dimension is
accompanied by a spin freezing mechanism which causes chain breaks in the
thermodynamic limit. Using analytical and numerical approaches, we show that such chain
breaks directly probe the typical localization length and that their scaling properties at the …
[引用][C] Chain breaking and Kosterlitz-Thouless scaling at the many-body localization transition
N Laflorencie, G Lemarié, N Macé - arXiv preprint arXiv:2004.02861
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