From the 1 of 14 linked papers with an AI index.
14 papers
Does Fixing Break Security? An Empirical Study of Security Degradation in Iterative LLM-Driven Infrastructure-as-Code Repair
Benjamin Agyekum, Fabio Santos
Background: Iterative feedback loops are the dominant paradigm for improving LLM-generated Infrastructure-as-Code (IaC): validators such as Checkov and terraform validate feed erro…
Vacuum bubbles from cosmic ripples
Zi-Yan Yuwen, Rong-Gen Cai, Shao-Jiang Wang
The paper studies how density perturbations in the early Universe affect vacuum decay, showing that over‑densities can accelerate bubble nucleation while under‑densities suppress i…
Primordial black hole formation in bulk-viscous cosmology
Zi-Yan Yuwen, Cristian Joana, Shao-Jiang Wang +1
We investigate primordial black hole (PBH) formation in a cosmological background with bulk viscosity. Using numerical simulations, we determine the collapse threshold and the resu…
The MeerKAT Thousand-Pulsar Polarisation Array II: Searches for Ultralight Axion-Like Dark Matter
Zi-Yan Yuwen, Michael Sarkis, Yin-Zhe Ma +4
We construct Pulsar Polarisation Arrays (PPA), using regular pulsars monitored in MeerKAT's Thousand Pulsar Array (TPA) Programme, to search for Axion-like Dark Matter (ALDM) withi…
The MeerKAT Thousand-Pulsar Polarization Array I: Properties of the Polarization and Rotation Measure Time Series Data
Michael Sarkis, Zi-Yan Yuwen, Yin-Zhe Ma +4
The polarimetry of recent pulsar observations has provided a wealth of observational data with which to test physical theories of emission mechanisms, radiative transfer and even t…
Relic gravitational waves from primordial gravitational collapses
Xiang-Xi Zeng, Zhuan Ning, Zi-Yan Yuwen +3
A large primordial density perturbation of the Hubble scale will gravitationally collapse, generating an outgoing sound shell, whether or not a primordial black hole (PBH) is forme…