Chuan‐Feng Li

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 …

Experimental Detection of Entanglement Polytopes via Local Filters

2015 · arXiv (Cornell University)

Entanglement polytopes result in finitely many types of entanglement that can be detected by only measuring single-particle spectra. With high probability, however, the local spectra lie in more than one polytope, hence providing no information …

Experimental realization of high-fidelity teleportation via a non-Markovian open quantum system

2020 · Physical Review A

Open quantum systems and study of decoherence are important for our fundamental understanding of quantum physical phenomena. For practical purposes, a large number of quantum protocols exist that exploit quantum resources, e.g., entanglement, which allows …

Operational Resource Theory of Imaginarity

2021 · Physical Review Letters

Wave-particle duality is one of the basic features of quantum mechanics, giving rise to the use of complex numbers in describing states of quantum systems and their dynamics and interaction. Since the inception of quantum …

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, …

Experimental beating the standard quantum limit under non-markovian dephasing environment

2022 · arXiv (Cornell University)

Entanglement enhanced quantum metrology has been well investigated for beating the standard quantum limit (SQL). However, the metrological advantage of entangled states becomes much more elusive in the presence of noise. Under strictly Markovian dephasing …

Simulating many-body physics with quantum nonlinear optics

2023 · Physical Review A

The rapidly growing field of quantum information can benefit greatly from quantum nonlinear optics, which has the potential to generate highly correlated optical states with a sufficiently large interaction strength per photon. Such states play …

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 …