{
  "abstract": "We present a theoretical study of nonreciprocal charge transport in two-dimensional noncentrosymmetric superconductors, taking the transition-metal dichalcogenide MoS$_2$ as a representative example. In the normal state, the magnetochiral anisotropy vanishes within the minimal band model of MoS$_2$, appearing only at subleading order in the symmetry-breaking perturbations set by trigonal warping, Ising spin-orbit coupling, and the Zeeman field. Superconductivity changes this picture qualitatively: in the vicinity of the transition, the magnetochiral anisotropy is strongly enhanced by pairing fluctuations. We evaluate the nonreciprocal current density arising from order-parameter fluctuations and quantum-interference processes -- the Aslamazov-Larkin and Maki-Thompson channels -- and show that both are governed by cubic Lifshitz invariants of the Ginzburg-Landau free energy, generically allowed once inversion and time-reversal symmetries are broken. These invariants are derived microscopically from the band model, including the effects of disorder: in the diffusive limit the warping-induced invariant is suppressed, yet the resulting response remains sizable. Strain is shown to enable additional vector components of the nonlinear current, activating the Maki-Thompson channel. Finally, invoking Onsager reciprocity, we identify kinetic Lifshitz invariants, nonreciprocal corrections to the order-parameter relaxation rate, locked to the Langevin noise by the fluctuation-dissipation theorem, and demonstrate that their contribution to the magnetochiral anisotropy is parametrically subleading near the transition.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. B 114, 154503 (2026)",
  "arxiv": "2606.05302",
  "author_total": 3,
  "authors": [
    {
      "name": "Joaquim Telles de Miranda"
    },
    {
      "name": "Maxim Khodas"
    },
    {
      "name": "Alex Levchenko"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9b394svdzge55.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.05302",
  "fulltext_url": null,
  "id": "9b394svdzge55",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.05302",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.supr-con"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2606.05302",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9b394svdzge55.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:52Z",
      "native_id": "2606.05302",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.05302"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.supr-con",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Magnetochiral anisotropy in strained superconducting transition metal dichalcogenides",
  "title_text": "Magnetochiral anisotropy in strained superconducting transition metal dichalcogenides",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:52Z",
  "url": "https://research.draconitic.com/paper/9b394svdzge55",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/wvvl-wv6z",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}