{
  "id": "2203.11984",
  "version": "v1",
  "published": "2022-03-22T18:21:23.000Z",
  "updated": "2022-03-22T18:21:23.000Z",
  "title": "Experimental Realization of One Dimensional Helium",
  "authors": [
    "Adrian Del Maestro",
    "Nathan S. Nichols",
    "Timothy R. Prisk",
    "Garfield Warren",
    "Paul E. Sokol"
  ],
  "comment": "10 pages, 5 figures. For associated data and code repository see: https://github.com/DelMaestroGroup/papers-code-preplated-nanopores-scattering",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.quant-gas",
    "cond-mat.supr-con"
  ],
  "abstract": "The realization of experimental platforms exhibiting one dimensional (1D) quantum phenomena has been elusive, due to their inherent lack of stability, with a few notable exceptions including spin chains, carbon nanotubes and ultracold low-density gasses. The difficulty of such systems in exhibiting long range order is integral to their effective description in terms of the Tomonaga-Luttinger liquid theory. Recently, it has been proposed that bosonic superfluid 4He could realize a 1D quantum system beyond the Luttinger liquid paradigm. Here we describe an experimental observation of this behavior using nanoengineering by preplating a porous material with a noble gas to enhance dimensional reduction. The resulting excitations of the confined 4He are qualitatively different than 3D and 2D superfluid helium, and can be analyzed in terms of a mobile impurity in a Luttinger liquid allowing for the characterization of the emergent quantum liquid. The confined helium system offers the possibility of tuning via pressure - from weakly interacting, all the way to the super Tonks-Girardeau gas of strongly interacting hard-core particles.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-03-22T18:21:23.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dimensional helium",
      "experimental realization",
      "confined helium system offers",
      "emergent quantum liquid",
      "ultracold low-density gasses"
    ],
    "tags": [
      "github project"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}