{
  "abstract": "Tomographic weak gravitational lensing probes cosmic structure growth and geometry, making it a powerful probe of dynamical dark energy. We forecast information beyond the lensing power spectrum from non-Gaussian statistics of tomographic galaxy and CMB lensing convergence maps. Using the $\\texttt{DDELenS}$ suite of ray-traced $N$-body simulations, we build Gaussian process emulators for power spectra, Minkowski functionals, moments, peak and minima counts, and the wavelet scattering transform, varying $Ω_m$, $σ_8$, $w_0$, and $w_a$. We consider Rubin-like galaxy lensing and Simons Observatory-like CMB lensing over $15{,}000\\,\\mathrm{deg}^2$, and validate the analysis using a withheld fiducial cosmology, analytical power-spectrum forecasts, and Gaussian random-field null tests. As an initial step, we neglect baryonic effects and intrinsic alignments and approximate galaxy sources as discrete redshift planes. Using all source redshifts at $z_s=\\{0.5, 1, 1.5, 2, 2.5, 1100\\}$, combining all five non-Gaussian statistics reduces uncertainties on $w_0$ and $w_a$ by $24.3\\%$ and $28.0\\%$, and on $Ω_m$ and $σ_8$ by $41.9\\%$ and $45.8\\%$, relative to the power-spectrum-only baseline. The resulting $w_0$ and $w_a$ uncertainties are $34.7\\%$ and $48.7\\%$ smaller than current DESI+DES constraints. If the DESI+DES best-fit values remain unchanged, this precision would increase the significance of the departure from $Λ$CDM from $3.0σ$ to $5.2σ$, compared with $3.8σ$ from the power spectrum alone, assuming a Gaussian posterior and unchanged $w_0$--$w_a$ correlation. Minkowski functionals and moments provide comparable constraining power, while combining them with the other summaries gives the strongest constraints. Broad galaxy-lensing redshift coverage is particularly important for dynamical dark energy, while CMB lensing provides complementary information.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.29937",
  "author_total": 3,
  "authors": [
    {
      "name": "Shu-Fan Chen"
    },
    {
      "name": "J. Colin Hill"
    },
    {
      "name": "Zoltán Haiman"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d7ggew1g5zxys.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.29937",
  "fulltext_url": null,
  "id": "d7ggew1g5zxys",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.29937",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7223251136",
  "pdf_url": "https://arxiv.org/pdf/2610.29937",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d7ggew1g5zxys.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:19Z",
      "native_id": "2610.29937",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.29937"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    }
  ],
  "title": "Constraining Dynamical Dark Energy with Tomographic Galaxy and CMB Weak Lensing Through Higher-Order Statistics",
  "title_text": "Constraining Dynamical Dark Energy with Tomographic Galaxy and CMB Weak Lensing Through Higher-Order Statistics",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:19Z",
  "url": "https://research.draconitic.com/paper/d7ggew1g5zxys",
  "venue": "arXiv",
  "versions": []
}