{
  "annotation_id": "5692eaa4-7113-4d75-8ed7-064462a24a04",
  "date_created": "2026-02-17T05:53:03.731000Z",
  "date_modified": "2026-02-17T05:53:03.731000Z",
  "file_hash": "05ec0cf1b50bdb7ffeddc793352c0260188f779af7ef684efdd10f52c91dd073",
  "private": false,
  "record": {
    "abstract": "We establish a remarkably rich ground state phase diagram in the maple-leaf lattice spin-$1/2$ Heisenberg antiferromagnet as a function of the three symmetry-inequivalent nearest-neighbor bonds using exact diagonalization and tower-of-states analysis on clusters up to $N=36$ sites. Besides a hexagonal plaquette state, a star-shaped valence bond solid state is discovered in close vicinity to the (canted) $120^\\circ$ magnetic phase, strongly reminiscent of a de-confined critical point or Dirac spin liquid scenario on the triangular lattice antiferromagnets. Moreover, an exact dimer product-state is observed next to a collinear N\\\u0027eel-state, similar to the Shastry-Sutherland model. All identified phases compete in a parameter regime close to the isotropic point, providing a promising region for spin liquids to emerge. By analyzing Gutzwiller-projected wave-functions we identify a sliver of parameter regime where a gapped $\\mathbb{Z}_{2}$ spin liquid Ansatz is in astonishing agreement with the exact $N=36$ ground state. This rich competition of paramagnetic phases demonstrates that the maple-leaf antiferromagnet is a promising platform for exotic states of matter and quantum critical phenomena.",
    "arxiv_id": "2601.05308",
    "authors": [
      "Paul L. Ebert",
      "Yasir Iqbal",
      "Alexander Wietek"
    ],
    "categories": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Competing Paramagnetic Phases in the Maple-Leaf Heisenberg Antiferromagnet",
    "url": "https://arxiv.org/abs/2601.05308",
    "version": "v2"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9d010e85-5e25-4197-bb7d-d927d935f4dd",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}