{
  "annotation_id": "d1fe5d2c-3190-4112-b954-d0c5264db278",
  "date_created": "2026-03-02T18:00:49.846000Z",
  "date_modified": "2026-03-02T18:00:49.846000Z",
  "file_hash": "1863b7080e245c7339a380bcdbff2896a7449cf380246b1bccf6109c984dddb3",
  "private": false,
  "record": {
    "abstract": "Recently, cesium atoms in optical lattices subjected to cycles of\nunequally-spaced pulses have been found to show interesting behavior: they\nrepresent the first experimental demonstration of a Hamiltonian ratchet\nmechanism, and they show strong variability of the Dynamical Localization\nlengths as a function of initial momentum. The behavior differs qualitatively\nfrom corresponding atomic systems pulsed with equal periods, which are a\ntextbook implementation of a well-studied quantum chaos paradigm, the quantum\ndelta-kicked particle (delta-QKP). We investigate here the properties of the\ncorresponding eigenstates (Floquet states) in the parameter regime of the new\nexperiments and compare them with those of the eigenstates of the delta-QKP at\nsimilar kicking strengths. We show that, with the properties of the Floquet\nstates, we can shed light on the form of the observed ratchet current as well\nas variations in the Dynamical Localization length.",
    "arxiv_id": "physics/0407100",
    "authors": [
      "G. Hur",
      "C. E. Creffield",
      "P. H. Jones",
      "T. S. Monteiro"
    ],
    "categories": [
      "physics.atom-ph",
      "nlin.CD",
      "physics.gen-ph"
    ],
    "doi": "10.1103/PhysRevA.72.013403",
    "title": "Chaotic quantum ratchets and filters with cold atoms in optical   lattices: properties of Floquet states",
    "url": "https://arxiv.org/abs/physics/0407100"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d61b916b-81f3-4df5-8632-6a78bad2185a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}