{
  "annotation_id": "8743d47f-db7a-458e-b7a6-08114bb89166",
  "date_created": "2026-03-02T18:01:56.335000Z",
  "date_modified": "2026-03-02T18:01:56.335000Z",
  "file_hash": "9ada7248344bd48ab6346858a179f4a29d9ce66dd0d9bea3c091a27bdb450afe",
  "private": false,
  "record": {
    "abstract": "We show that a superconducting circuit containing two loops, when treated\nwith Macroscopic Quantum Coherence (MQC) theory, constitutes a complete two-bit\nquantum computer. The manipulation of the system is easily implemented with\nalternating magnetic fields. A \\textit{universal} set of quantum gates is\ndeemed available by means of all unitary single bit operations and a\ncontrolled-not (\\textsc{cnot}) sequence. We use multi-dimensional MQC theory\nand time-dependent first order perturbation theory to analyze the model. Our\ncalculations show that a two qubit arrangement, each having a diameter of\n200nm, operating in the flux regime can be operated with a static magnetic\nfield of $\\sim 0.1$T, and an alternating dynamic magnetic field of amplitude\n$\\sim 1$ Gauss and frequency $\\sim 10$Hz. The operational time $\\tau_{op}$ is\nestimated to be $\\sim 10$ns.",
    "arxiv_id": "quant-ph/0303128",
    "authors": [
      "Hide Akisato"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "title": "Macroscopic Quantum Resonance of Coupled Flux Qubits; A Quantum   Computation Scheme",
    "url": "https://arxiv.org/abs/quant-ph/0303128"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c394a2c9-45f9-4083-b67c-f16d7d08ea8b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}