{
  "id": "2405.14466",
  "version": "v1",
  "published": "2024-05-23T11:54:11.000Z",
  "updated": "2024-05-23T11:54:11.000Z",
  "title": "Ultra-cold atoms quantum tunneling through single and double optical barriers",
  "authors": [
    "Roy Eid",
    "Alfred Hammond",
    "Lucas Lavoine",
    "Thomas Bourdel"
  ],
  "categories": [
    "physics.atom-ph",
    "quant-ph"
  ],
  "abstract": "We realize textbook experiments on Bose-Einstein condensate tunnelling through thin repulsive potential barriers. In particular, we demonstrate atom tunnelling though a single optical barrier in the quantum scattering regime where the De Broglie wavelength of the atoms is larger than the barrier width. Such a beam splitter can be used for atom interferometry and we study the case of two barriers creating an atomic Fabry-P{\\'e}rot cavity. Technically, the velocity of the atoms is reduced thanks to the use of a 39K Bose-Einstein condensate with no interactions. The potential barriers are created optically and their width is tunable thanks to the use of a digital micro-mirror device. In addition, our scattering experiments enable in-situ characterization of the optical aberrations of the barrier optical system.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-05-23T11:54:11.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "ultra-cold atoms quantum tunneling",
      "double optical barriers",
      "bose-einstein condensate",
      "thin repulsive potential barriers",
      "scattering experiments enable in-situ characterization"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}