{
  "id": "1001.0962",
  "version": "v1",
  "published": "2010-01-06T20:41:43.000Z",
  "updated": "2010-01-06T20:41:43.000Z",
  "title": "Spectral singularities and Bragg scattering in complex crystals",
  "authors": [
    "S. Longhi"
  ],
  "comment": "6 pages, 5 figures, to be published in Phys. Rev. A",
  "journal": "Phys. Rev. A 81, 022102 (2010)",
  "categories": [
    "quant-ph"
  ],
  "abstract": "Spectral singularities that spoil the completeness of Bloch-Floquet states may occur in non-Hermitian Hamiltonians with complex periodic potentials. Here an equivalence is established between spectral singularities in complex crystals and secularities that arise in Bragg diffraction patterns. Signatures of spectral singularities in a scattering process with wave packets are elucidated for a PT-symmetric complex crystal.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-01-06T20:41:43.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Er",
      "03.65.-w",
      "42.50.Xa"
    ],
    "keywords": [
      "spectral singularities",
      "bragg scattering",
      "pt-symmetric complex crystal",
      "bragg diffraction patterns",
      "complex periodic potentials"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "doi": "10.1103/PhysRevA.81.022102",
      "year": 2010,
      "month": "Feb",
      "volume": 81,
      "number": 2,
      "pages": "022102"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2010PhRvA..81b2102L"
    }
  }
}