Jinzheng Li
PhD Candidate in Physics @ Northeastern
I'm currently a PhD candidate in the Physics Department at Northeastern University, under the supervision of Pran Nath.
My research centers on early-universe cosmology, first-order phase transitions, stochastic gravitational waves, dark sectors, and the thermal history of the universe. I build and validate numerical pipelines for effective potentials, tunneling/bounce actions, and gravitational-wave spectra.
News
Research
My research spans three complementary areas in cosmology and particle physics:
Phase Transitions & Gravitational Waves
Supercooled first-order phase transitions, nucleation dynamics, bubble spectra, and gravitational-wave signals testable by pulsar timing arrays and future space-based detectors.
Hidden Sectors & Dark Matter
Hidden-sector thermal histories, hot vs. cold dark sectors, self-interacting dark matter, gauge-invariant effective potentials, and cogenesis in B−L conserving models.
SUSY & BSM Model Building
Natural MSSM from novel SO(10) GUTs, Yukawa unification, light sparticle spectra, and phenomenological implications at the LHC.
Key Project
CosmoHidden_lite
Minimal utilities to explore a 1D U(1) scalar finite-temperature effective potential and compute the tunneling action S(T) using CosmoTransitions path deformation. Built to support analyses in paper 2501.14986.
Publications
Education
