{
  "annotation_id": "68214448-353c-4130-ac1c-c845ea1025cb",
  "date_created": "2026-03-02T18:02:34.493000Z",
  "date_modified": "2026-03-02T18:02:34.493000Z",
  "file_hash": "080e82847dc249c5102ed89dfbf8721e74f9c6485ba264f87bd366279a1898ab",
  "private": false,
  "record": {
    "abstract": "We discuss nonclassical properties of single-photon subtracted squeezed\nvacuum states in terms of the sub-Poissonian statistics and the negativity of\nthe Wigner function. We derive a compact expression for the Wigner function\nfrom which we find the region of phase space where Wigner function is negative.\nWe find an upper bound on the squeezing parameter for the state to exhibit\nsub-Poissonian statistics. We then study the effect of decoherence on the\nsingle-photon subtracted squeezed states. We present results for two different\nmodels of decoherence, viz. amplitude decay model and the phase diffusion\nmodel. In each case we give analytical results for the time evolution of the\nstate. We discuss the loss of nonclassicality as a result of decoherence. We\nshow through the study of their phase-space properties how these states decay\nto vacuum due to the decay of photons. We show that phase damping leads to very\nslow decoherence than the photon-number decay.",
    "arxiv_id": "quant-ph/0612024",
    "authors": [
      "Asoka Biswas",
      "G. S. Agarwal"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.032104",
    "journal_ref": "Phys. Rev. A 75, 032104 (2007)",
    "title": "Nonclassicality and decoherence of photon-subtracted squeezed states",
    "url": "https://arxiv.org/abs/quant-ph/0612024"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8c045371-13dd-431e-8ad4-d2858a4b4b1e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}