{
  "id": "1610.00295",
  "version": "v1",
  "published": "2016-10-02T15:52:00.000Z",
  "updated": "2016-10-02T15:52:00.000Z",
  "title": "Many-body theory of magneto-elasticity in one dimension",
  "authors": [
    "O. Tsyplyatyev",
    "P. Kopietz",
    "P. T. Cong",
    "B. Wolf",
    "Y. Tsui",
    "N. van Well",
    "F. Ritter",
    "C. Krellner",
    "W. Aßmus",
    "M. Lang"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We construct a many-body theory of magneto-elasticity in one dimension and show that the dynamical correlation functions of the quantum magnet, connecting the spins with phonons, involve all energy scales. Accounting for all magnetic states non-perturbatively via the exact diagonalisation techniques of Bethe ansatz, we find that the renormalisation of the phonon velocity is a non-monotonous function of the external magnetic field and identify a new mechanism for attenuation of phonons - via hybridisation with the continuum of excitations at high energy. We conduct ultrasonic measurements on a high-quality single crystal of the frustrated spin-1/2 Heisenberg antiferromagnet $\\textrm{Cs}_{2}\\textrm{CuCl}_{4}$ in its one-dimensional regime and confirm the theoretical predictions, demonstrating that ultrasound can be used as a powerful probe of strong correlations in one dimension.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-10-02T15:52:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "many-body theory",
      "magneto-elasticity",
      "high-quality single crystal",
      "conduct ultrasonic measurements",
      "exact diagonalisation techniques"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}