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Author

Yong Sheng Yap

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Preprint Oct 2026

The Disordered Universe 2025: Analytic Properties of Amplitudes and Correlators

These lectures provide an introduction to modern techniques for studying the analytic properties of loop-level scattering amplitudes and correlation functions in perturbative quantum field theory. We begin by developing the ideas behind Landau analysis, which identifies the location and nature of kinematic singularitie...

Mattia Capuano, Chandramouli Chowdhury, Chantelle Esper et al. · 1 citation
Preprint Sep 2026

Tide-and-Seek: Anisotropic scale-dependent bias in the Lyman-alpha forest and designer samples

Searches for primordial non-Gaussianity are powerful ways of learning new information about the early Universe. Observing primordial signals in the late Universe is challenging as, in general, it is difficult to disentangle the small, primordial signatures from the complex physics that describes the distribution of gal...

Yong Sheng Yap, W. Coulton, V. Iřsič · 0 citations

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