Certifying Quantum Separability with Adaptive Polytopes

Understand

The concept of entanglement and separability of quantum states is relevant for several fields in physics.

• Still, there is a lack of effective operational methods to characterise these features.
• We propose a method to certify quantum separability of two- and multiparticle quantum systems based on an adaptive polytope approximation.
• This leads to an algorithm which, for practical purposes, conclusively recognises two-particle separability for small and medium-size dimensions.