{
  "id": "2209.12360",
  "version": "v1",
  "published": "2022-09-26T01:19:29.000Z",
  "updated": "2022-09-26T01:19:29.000Z",
  "title": "Optical protection of alkali-metal atoms from spin relaxation",
  "authors": [
    "Avraham Berrebi",
    "Mark Dikopoltsev",
    "Ori Katz",
    "Or Katz"
  ],
  "categories": [
    "quant-ph",
    "physics.atom-ph"
  ],
  "abstract": "We describe a new mechanism to continuously protect alkali-metal atoms from spin relaxation using a single off-resonant optical beam. We experimentally demonstrate that state-selective light-shifts can synchronize the Larmor frequencies of the two hyperfine manifolds, and by that form a unique decoherence-free subspace. We report an order of magnitude suppression of the spin decoherence for cesium atoms, simultaneously protecting from random spin-exchange collisions and partially also from spin-relaxation by the interaction with weakly-depolarizing walls. We further report an order of magnitude improvement of the quality factor of the magnetic states. Our results demonstrate the ability to use the multi-level structure of atoms or molecules with accessible optical tools to engineer useful decoherence-free subspaces.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-09-26T01:19:29.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spin relaxation",
      "optical protection",
      "single off-resonant optical beam",
      "random spin-exchange collisions",
      "continuously protect alkali-metal atoms"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}