Publications (7)
Characterization-free classification and identification of the environment between two quantum players
Masahito Hayashi, Longyang Cao, Baichu Yu +1
Classifying the causal structure of quantum channels is essential for verifying quantum networks and certifying quantum resources. We introduce a characterization-free protocol ena…
Measurement-Device-Independent Detection of Beyond-Quantum State
Baichu Yu, Masahito Hayashi
In quantum theory, a quantum state on a composite system of two parties realizes a non-negative probability with any measurement element with a tensor product form. However, there…
Absolutely entangled sets of pure states for bipartitions and multipartitions
Baichu Yu, Pooja Jayachandran, Adam Burchardt +3
A set of quantum states is said to be absolutely entangled, when at least one state in the set remains entangled for any definition of subsystems, i.e. for any choice of the global…
Entanglement for any definition of two subsystems
Yu Cai, Baichu Yu, Pooja Jayachandran +3
The notion of entanglement of quantum states is usually defined with respect to a fixed bipartition. Indeed, a global basis change can always map an entangled state to a separable…
Detection of Beyond-Quantum Non-locality based on Standard Local Quantum Observables
Hayato Arai, Baichu Yu, Masahito Hayashi
Device independent detections of quantum non-locality like Bell-CHSH inequality are important methods to detect quantum non-locality because the whole protocol can be implemented b…
Information causality beyond the random access code model
Baichu Yu, Valerio Scarani
The paper introduces a new quantifier for information causality based on redundant information, which closes several gaps between the principle and the quantum set of correlations,…
Neural Network Approach to the Simulation of Entangled States with One Bit of Communication
Peter Sidajaya, Aloysius Dewen Lim, Baichu Yu +1
Bell's theorem states that Local Hidden Variables (LHVs) cannot fully explain the statistics of measurements on some entangled quantum states. It is natural to ask how much supplem…