Publications
Peer-reviewed and preprint work in cosmological statistics, CMB analysis and machine learning. Author position is stated on every entry. Cosmology papers are COMPACT Collaboration papers, in which the author list is ordered first by contribution and then alphabetically.
Citation counts from Google Scholar and INSPIRE-HEP. The 2 manuscripts in preparation are listed separately below and are not counted in the total. Full record: Google Scholar · INSPIRE-HEP · ORCID.
Published & Accepted
The Topology of the Universe
Nature Astronomy · Invited review, in press
Invited review of the observational status of cosmic topology and the prospects for CMB (LiteBIRD, Taurus) and large-scale-structure searches.
Cosmic topology. Part IIb. Eigenmodes, correlation matrices, and detectability of non-orientable Euclidean manifolds
Journal of Cosmology and Astroparticle Physics 07 (2026) 004
Eigenmodes, non-diagonal aℓm covariance matrices, and cosmic-variance-limited detectability for the non-orientable Euclidean topologies E7–E10, E13–E15 and E17.
Don't Pass@k: A Bayesian Framework for Large Language Model Evaluation
International Conference on Learning Representations (ICLR) 2026 · Main conference
Replaces Pass@k and avg@N with posterior estimates and credible intervals on a model's underlying success probability. Outcomes are modelled as categorical with a Dirichlet prior, giving closed-form posterior mean and uncertainty for any weighted rubric. Achieves faster convergence and greater rank stability than Pass@k at far smaller sample counts.
Cosmic topology. Part IIIb. Eigenmodes and correlation matrices of spin-2 perturbations in orientable Euclidean manifolds
Journal of Cosmology and Astroparticle Physics 08 (2025) 015
First computation of spin-2 (tensor) Laplacian eigenmodes and the corresponding CMB correlation matrices for orientable compact Euclidean manifolds.
Cosmic topology. Part Ic. Limits on lens spaces from circle searches
Journal of Cosmology and Astroparticle Physics 01 (2025) 004
Observational limits on lens-space topologies derived from matched-circle searches in the CMB.
Cosmic topology. Part IIIa. Microwave background parity violation without parity-violating microphysics
Journal of Cosmology and Astroparticle Physics 11 (2024) 020
Showed that non-trivial spatial topology alone generates parity-odd TB/EB CMB correlations, with no parity-violating microphysics — a new observational channel for topology and for primordial tensor modes.
Cosmic topology. Part IVa. Classification of manifolds using machine learning: a case study with small toroidal universes
Journal of Cosmology and Astroparticle Physics 09 (2024) 057
Classifiers trained on simulated CMB maps recover near-likelihood-level discrimination between manifolds at a fraction of the cost. A rare setting in which the ground-truth likelihood is computable, so the learned model's discrepancy from the optimal decision rule can be measured rather than assumed.
Submitted & Under Review
Cosmic topology. Part Va. Information content of the observable Universe
arXiv preprint
Information content of the observable Universe under non-trivial spatial topology.
Test-Time Scaling in Reasoning LLMs: Inference Regimes, Evaluation, and Reproducibility
arXiv preprint
Formalizes test-time scaling as budgeted inference over the implicit prefix tree of an autoregressive transformer, distinguishing sequential, leaf-level and prefix-level scaling. Treats the entire inference system as the evaluated object and specifies reproducibility requirements separating exact replay from distributional reproducibility. Over 2 billion reasoning traces released.
Quantum Signatures of Cosmic Topology: How Casimir Backreaction Transmits Isotropy Violation
Under review
A finite, scheme-independent Casimir stress-energy contribution arises for quantum fields in universes with non-trivial spatial topology; its backreaction during de Sitter expansion drives anisotropic expansion even from a locally isotropic initial state.
Cosmic topology. Part IIc. Detectability with non-standard primordial power spectrum
Under review at Journal of Cosmology and Astroparticle Physics
Detectability of compact topologies when the primordial power spectrum departs from the standard near-scale-invariant form.
In Preparation
Beyond the Kullback–Leibler divergence: the likelihood-ratio distribution as a detectability measure for cosmic topology
In preparation
The KL divergence is an expected information gain and cannot, by itself, give a detection probability on a single realization. This work derives the exact sampling distribution of the log-likelihood ratio between two zero-mean Gaussian models — a generalized non-central chi-squared — and uses it to convert expected information gain into a detection probability with ROC curves and calibrated interval coverage. Supplies the frequentist validation layer that learned ratio estimators currently lack, and connects to Bayesian experimental design. Model-agnostic; cosmic topology is the case study.
Cosmic topology. Part IIIc. Eigenmodes and correlation matrices of spin-2 perturbations in non-orientable Euclidean manifolds
In preparation
Extension of Part IIIb to the non-orientable Euclidean topologies; cited as forthcoming in JCAP 07 (2026) 004.