Constructing unextendible product bases from multiqubit ones

Abstract

The construction of multipartite unextendible product bases (UPBs) is a basic problem in quantum information. We respectively construct two families of $2\times 2\times 4$ and $2\times 2\times 2\times 4$ UPBs of size eight by using the existing four-qubit and five-qubit UPBs. As an application, we construct novel families of multipartite positive-partial-transpose entangled states, as well as their entanglement properties in terms of the geometric measure of entanglement.

30 pages

References in corpus (4)

• Strong quantum nonlocality for unextendible product bases in heterogeneous systems
• Unextendible entangled bases with fixed Schmidt number
• Separability of Completely Symmetric States in Multipartite System
• Nonexistence of $n$-qubit unextendible product bases of size $2^n-5$