{
  "id": "2307.07485",
  "version": "v1",
  "published": "2023-07-14T17:12:08.000Z",
  "updated": "2023-07-14T17:12:08.000Z",
  "title": "Generating Entanglement by Quantum Resetting",
  "authors": [
    "Manas Kulkarni",
    "Satya N. Majumdar"
  ],
  "comment": "11 pages, 3 figures, Supplementary Material",
  "categories": [
    "quant-ph",
    "cond-mat.stat-mech"
  ],
  "abstract": "We provide a general framework to compute the von Neumann entanglement entropy of a subsystem of a quantum system subject to stochastic resetting to its initial state with rate $r$. Using this framework we compute exactly the entanglement entropy of a single spin in a two-spin system. This system consists of a pair of ferromagnetically coupled spins in the presence of a transverse magnetic field and subjected to stochastic resetting to the $\\mid \\downarrow\\downarrow \\rangle$ state with rate $r$. We show that resetting drives the system to a non-equilibrium steady state where the von Neumann entropy exhibits rich behaviour as a function of the resetting rate and the interaction strength. In particular, even in the noninteracting limit, a small amount of resetting drives the system to a maximally entangled state. We also calculate analytically the temporal growth of the von Neumann entropy. Our results show that quantum resetting provides a simple and effective mechanism to enhance entanglement between two parts of a quantum system.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-07-14T17:12:08.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum resetting",
      "generating entanglement",
      "von neumann entropy",
      "von neumann entanglement entropy",
      "quantum system subject"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}