3 papers
physics.atom-ph2026
A nuclear clock based on Th
Beichen Huang, Gaowei Yan, Qi Xiao +35
Atomic clocks have made time and frequency the most precisely measured quantities in physics, progressing from microwave standards that realize the SI second to optical clocks that…
cs.RO2026
Online sparse Bayesian identification of nonlinear time-varying systems
He Ren, Gaowei Yan, Hang Liu +3
Sparse regression provides a compact and interpretable route for nonlinear system modeling by selecting a small number of active terms from a candidate dictionary. Most sparse regr…
physics.atom-ph2025
A continuous-wave vacuum ultraviolet laser for the nuclear clock
Qi Xiao, Gleb Penyazkov, Xiangliang Li +14
The exceptionally low-energy isomeric transition in Th at around 148.4 nm offers a unique opportunity for coherent nuclear control and the realisation of a nuclear clock. R…