About me

Welcome! I am Siyang Ling, currently a postdoc in theoretical physics at the Physics Department of City University of Hong Kong. I obtained my PhD from Rice University, where I was advised by Prof. Andrew J. Long. My research interests include particle cosmology, gravity, the nature and origin of dark matter and mathematical physics in general. One of my research focus is gravitational particle production, the quantum production of particles by strong gravitational fields during inflation and reheating. I had also been working on using numerical simulations to study cosmological perturbations (e.g. free streaming of dark matter).

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Contact

• Phone: +1 (312)-678-4725
• Email: lingsy.chris2011@gmail.com
• Inspire HEP

Address

Education

• Postdoc in Physics at City University of Hong Kong (2024-current)
• PhD in Physics at Rice University, Department of Physics and Astronomy (2019-2024)
• BSc in Mathematics at University of Chicago (2014-2018)

Interests

• Inflation: CMB observables, quasi-single-field models, production of particles and gravitational waves during inflation
• Dark matter: superheavy WIMPzilla, ultralight dark photon, axion-like particles, non-minimal coupling to gravity
• CMB probes of new physics: isocurvature, non-Gaussianity, cosmological collider
• Gravitational wave: stochastic background, deviations from GR
• Structure formation: deviations from LambdaCDM, tests on dark matter models
• Solitonic configurations and numerical methods to find them
• Assorted topics in mathematics and computer science