{
  "annotation_id": "78db692d-da55-485a-aec5-24b9fb3e79c9",
  "date_created": "2026-03-02T18:01:41.779000Z",
  "date_modified": "2026-03-02T18:01:41.779000Z",
  "file_hash": "10d8b0b89465c46c25b65a0d61a2afc54c920dbc1a3ad6990313b1a7f5b661b5",
  "private": false,
  "record": {
    "abstract": "Quantum computing algorithms require that the quantum register be initially\npresent in a superposition state. To achieve this, we consider the practical\nproblem of creating a coherent superposition state of several qubits. Owing to\nconsiderations of quantum statistics, this requires that the entropy of the\nsystem go down. This, in turn, has two practical implications: (i) the initial\nstate cannot be controlled; (ii) the temperature of the system must be reduced.\nThese factors, in addition to decoherence and sensitivity to errors, must be\nconsidered in the implementation of quantum computers.",
    "arxiv_id": "quant-ph/0010109",
    "authors": [
      "Subhash Kak"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s12043-001-0019-7",
    "journal_ref": "Pramana, vol. 57, pp. 683-688, 2001",
    "title": "Statistical Constraints on State Preparation for a Quantum Computer",
    "url": "https://arxiv.org/abs/quant-ph/0010109"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f6f238e4-f800-473a-bdd2-908d28b62e17",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}