August 2026 🔬: Entanglement can be hiding in plain sight. If the measurement settings are poorly aligned, even an entangled state can keep its secrets. Our new preprint explores how a Bell test can help find the right settings without first reconstructing the whole quantum state.
Each Bell-test result steers the next adjustment. In simulations, the method revealed high-dimensional entanglement in the state families tested from two to eight dimensions, with fresh data providing an independent check at the end.
The work is by Xu Kang Tan, Jesvita Menezes, Sanjan D. Murthy and Adetunmise C. Dada, with equal contributions from Xu Kang Tan and Jesvita Menezes. Read the paper: Direct Adaptive Certification of High-Dimensional Entanglement with Bell Tests.
