Quantum Ramp Secret Sharing from Haar Scrambling

Quantum information scrambling has emerged as a powerful tool for studying the dynamics of chaotic quantum many-body systems, assessing benchmarking protocols, and even investigating exotic black hole models. During quantum information scrambling, localized quantum information disperses across th...

A Halpha Metric for Identifying Dormant Black Holes in X-Ray Transients

Dormant black holes BHs in X-ray transients can be identified by the presence of broad Ha emission lines from quiescent accretion discs. Unfortunately, short-period cataclysmic variables CVs can also produce broad Ha lines, especially when viewed at high inclinations, and are thus a major source ...