Yu-Chun Wu

Experimental measurement-device-independent high dimensional entanglement quantification

2019 · arXiv (Cornell University)

The certification and quantification of entanglement are of great importance in characterizing entangled systems. Measurement-device-independent entanglement witness (MDIEW) has been developed to solve the problem of imperfection of measurement schemes and has been used to …

Environment-induced sudden change of coherence in quantum systems

2020 · Physical Review A

Manipulating dynamical evolution is an important task in quantum information. The sudden death phenomenon (SDP), which is predicted to be unattainable beyond entanglement [T. Yu and J. H. Eberly, Sudden death of entanglement, Science 323, …

Can Variational Quantum Algorithms Demonstrate Quantum Advantages? Time Really Matters

2023 · arXiv (Cornell University)

Applying low-depth quantum neural networks (QNNs), variational quantum algorithms (VQAs) are both promising and challenging in the noisy intermediate-scale quantum (NISQ) era: Despite its remarkable progress, criticisms on the efficiency and feasibility issues never stopped. …

Certification of genuinely entangled subspaces of the five qubit code via robust self-testing

2025 · Reports on Progress in Physics

Self-testing provides a device-independent framework for certifying quantum properties based solely on input-output statistics while treating quantum devices as black boxes. It has evolved significantly from its origins in bipartite systems to applications in multipartite …