3 papers
quant-ph2026
Constraint-native quantum control for fidelity--complexity trade-offs with inexact proximal ADMM
Ziwen Song
Quantum-control pulses are often optimised for nominal fidelity before waveform constraints are imposed. This sequence can conceal the fidelity cost of producing smooth, band-limit…
physics.atom-ph2026
Optimal Control Design of Robust Raman Pulses for High-Fidelity Cold-Atom Interferometry
Ziwen Song
The performance of high-precision cold-atom interferometers is often limited by imperfections in the Raman laser fields. We present a reproducible framework for robust Raman mirror…
physics.atom-ph2025
Robust Atom Interferometry with Super-Gaussian Pulses against Thermal Velocity Spread
Yujuan Liu, Ziwen Song, Tingting Lin +2
Laser frequency fluctuation and atomic thermal motion can lead to errors in pulse duration and detuning in cold atom interferometry, thereby reducing measurement stability and frin…