4 papers
Full-Rank Noise Forbids Long-Range Entanglement Swapping
Xuan Du Trinh, Nicholas Pardave, Angie Huang +2
Quantum repeaters extend entanglement by swapping noisy elementary links. We prove that full-rank noise forbids this at long range: for any entangled full-rank two-qubit link, ther…
One Relative Phase Orders Operational Thresholds of Noisy Bell Pairs
Xuan Du Trinh
Unlike the two-qubit entangled and CHSH-nonlocal sets, the steerable and Bell-nonlocal ones have no known general closed-form criterion. For any such operational ability whose fail…
Operational thresholds of Bell mixtures with complex X noise
Xuan Du Trinh
Noisy Bell mixtures may carry entanglement, standard teleportation usefulness, projective-measurement steerability, and optimized Cavalcanti-Jones-Wiseman-Reid (CJWR) and Clauser-H…
Absorption capacity of separable noise: Bell-mixing thresholds on entanglement and teleportation
Xuan Du Trinh
We study Bell-mixing lines , where is a fixed Bell reference and is a separable two-qubit noise state. Along this line there are two operational crossin…