{
  "annotation_id": "960cae29-464e-4812-98a0-d7819ef17d02",
  "date_created": "2026-03-02T18:01:56.336000Z",
  "date_modified": "2026-03-02T18:01:56.336000Z",
  "file_hash": "df0c61f5ea14533a9b1b539f61414309755bda61da9fba002529996504d1dc40",
  "private": false,
  "record": {
    "abstract": "Within quantum mechanics which works with parity-pseudo-Hermitian\nHamiltonians we study the tunneling in a symmetric double well formed by two\ndelta functions with complex conjugate strengths. The model is exactly solvable\nand exhibits several interesting features. Besides an amazingly robust absence\nof any PT symmetry breaking, we observe a quasi-degeneracy of the levels which\noccurs all over the energy range including the high-energy domain. This pattern\nis interpreted as a manifestation of certain \"quantum beats\".",
    "arxiv_id": "quant-ph/0303122",
    "authors": [
      "Miloslav Znojil"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/36/27/315",
    "journal_ref": "J. Phys. A: Math. Gen. 36 (2003) 7639-7648",
    "title": "Solvable simulation of a double-well problem in PT symmetric quantum   mechanics",
    "url": "https://arxiv.org/abs/quant-ph/0303122"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "089cd995-1fb2-49af-9868-4ab8f9889377",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}