Correlation-Enhanced Quantum Reservoir Processing for Two-Qutrit Steering: From Generalization to Discovery

arXiv:2611.09268v1 Announce Type: new Abstract: Quantum reservoir processing (QRP) has been applied to entanglement quantification, yet its potential for generalizable steering detection and the discovery of high-dimensional quantum correlations remains largely unexplored. Here, we introduce correlation-enhanced QRP (CEQRP), extending QRP to two-qutrit systems with two-body spin-correlation readouts. Some CEQRP-based classifiers substantially improve cross-family generalization, with logistic regression trained on full-information CEQRP features achieving approximately $96\%$ accuracy on unseen Werner states and over $97\%$ accuracy on unseen isotropic states at both \(m=4\) and \(m=5\).