Title: Non-Local Quantum State Reconstruction via Entanglement Propagation
Jincheng Zhang
Abstract
Quantum state reconstruction is a fundamental challenge in quantum information science, requiring the determination of a quantum system's initial state from measurement results. Traditional approaches often involve computationally intensive "offline" methods, limiting their applicability. This paper introduces a novel method for quantum state reconstruction utilizing entanglement propagation, offering a fundamentally different approach compared to existing techniques. We propose a quantum algorithm that iteratively propagates entanglement across a network, enabling the reconstruction of the initial state with enhanced efficiency. The core mechanism relies on the inherent properties of entanglement, allowing for a potentially faster and more robust reconstruction process. This research addresses the limitations of existing methods and presents a promising direction for future advancements in quantum state estimation.