{
  "id": "cond-mat/0207042",
  "version": "v4",
  "published": "2002-07-01T19:55:16.000Z",
  "updated": "2002-10-31T10:23:38.000Z",
  "title": "Polarization of interacting bosons with spin",
  "authors": [
    "Eli Eisenberg",
    "Elliott H. Lieb"
  ],
  "comment": "v4: as published in PRL",
  "journal": "Phys. Rev. Lett. 89, 220403 (2002) .",
  "doi": "10.1103/PhysRevLett.89.220403",
  "categories": [
    "cond-mat.stat-mech",
    "math-ph",
    "math.MP"
  ],
  "abstract": "We demonstrate rigorously that in the absence of explicit spin-dependent forces one of the ground states of interacting bosons with spin is always fully polarized -- however complicated the many-body interaction potential might be. Depending on the particle spin, the polarized ground state will generally be degenerate with other states, but one can specify the exact degeneracy. For T>0 the magnetization and susceptibility necessarily exceed that of a pure paramagnet. These results are relevant to recent experiments exploring the relation between triplet superconductivity and ferromagnetism, and the Bose-Einstein condensation of atoms with spin. They eliminate the possibility, raised in some theoretical speculations, that the ground state or positive temperature state might be antiferromagnetic.",
  "revisions": [
    {
      "version": "v4",
      "updated": "2002-10-31T10:23:38.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "interacting bosons",
      "polarization",
      "explicit spin-dependent forces",
      "many-body interaction potential",
      "triplet superconductivity"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}