{
  "id": "1207.3349",
  "version": "v2",
  "published": "2012-07-13T11:32:40.000Z",
  "updated": "2012-11-22T15:09:51.000Z",
  "title": "A Langevin canonical approach to the dynamics of two level systems. I. Populations and coherences",
  "authors": [
    "H. C. Peñate-Rodriguez",
    "A. Dorta-Urra",
    "P. Bargueno",
    "G. Rojas-Lorenzo",
    "S. Miret-Artes"
  ],
  "comment": "8 pages, 4 figures, 1 table",
  "journal": "CHIRALITY 25:514-520 (2013)",
  "doi": "10.1002/chir.22155",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "A canonical framework for chiral two--level systems coupled to a bath of harmonic oscillators is developed to extract, from a stochastic dynamics, the thermodynamic equilibrium values of both the population difference and coherences. The incoherent and coherent tunneling regimes are analyzed for an Ohmic environment in terms of a critical temperature defined by the maximum of the heat capacity. The corresponding numerical results issued from solving a non-linear coupled system are fitted to approximate path--integral analytical expressions beyond the so-called non-interacting blip approximation in order to determine the different time scales governing both regimes.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-11-22T15:09:51.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "langevin canonical approach",
      "coherences",
      "thermodynamic equilibrium values",
      "approximate path-integral analytical expressions",
      "chiral two-level systems"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012arXiv1207.3349P"
    }
  }
}