Unextendible product bases (UPBs) play a key role in the study of quantum entanglement
and nonlocality. Here we provide an equivalent characterization of UPBs in graph-theoretic …

Strong nonlocality based on local distinguishability is a stronger form of quantum nonlocality
recently introduced in multipartite quantum systems: an orthogonal set of multipartite …

An orthogonal set of states in multipartite systems is called to be strong quantum nonlocality
if it is locally irreducible under every bipartition of the subsystems [46]. In this work, we study …

Abstract Recently, Halder et al (2019 Phys. Rev. Lett. 122 040403) proposed the concept of
strong nonlocality without entanglement: an orthogonal set of fully product states in …

We study the distinguishability of generalized Bell states under local operations and
classical communication. We introduce the concept of a maximally commutative set (MCS), a …

A set of orthogonal states in multipartite systems is called to be locally stable if to preserve
the orthogonality of the states, only trivial local measurement can be performed for each …

Apart from the Bell nonlocality, which deals with the correlations generated from the local
input-output statistics, quantum theory exhibits another kind of nonlocality that involves the …

It is known that by probabilistically mixing an arbitrary pair of pure quantum states, one of
which is entangled and the other product, in any bipartite quantum system, one always …

The quantum state discrimination primitive becomes highly nontrivial in the limited
measurement setting and leads to different classes of impossibility, viz., indistinguishability …

Quantum nonlocality without entanglement is a fantastic phenomenon in quantum theory.
This kind of quantum nonlocality is based on the task of local discrimination of quantum …