{
  "annotation_id": "6e423559-3bfd-4f1b-8415-10402cd9b28f",
  "date_created": "2026-03-02T18:01:55.666000Z",
  "date_modified": "2026-03-02T18:01:55.666000Z",
  "file_hash": "cca02a85b915ed76a36b8a3c7947f0d6d8cc0be2626adc778f856c3a72c8a5fe",
  "private": false,
  "record": {
    "abstract": "We present a simple electronic circuit which provides negative group delays\nfor band-limited, base-band pulses. It is shown that large time advancement\ncomparable to the pulse width can be achieved with appropriate cascading of\nnegative-delay circuits but eventually the out-of-band gain limits the number\nof cascading. The relations to superluminality and causality are also\ndiscussed.",
    "arxiv_id": "quant-ph/0302166",
    "authors": [
      "M. Kitano",
      "T. Nakanishi",
      "K. Sugiyama"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1109/JSTQE.2002.807979",
    "journal_ref": "IEEE Journal of Selected Topics in Quantum Electronics Vol.9 No. 1\n  (2003) p.43",
    "title": "Negative Group Delay and Superluminal Propagation: An Electronic Circuit   Approach",
    "url": "https://arxiv.org/abs/quant-ph/0302166"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e5594d64-e063-44a3-a147-c38216371b75",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}