Can the entanglement be considered a basic concept of quantum mechanics?

Abstract

Recently, several experimental tests devoted to quantitatively establish complementarity relations in quantum systems have been reported. Starting from the results of fully quantum single-particle self-interference experiments, we critically review the concept of entanglement, arguing that this quantity is a peculiar trait of composite quantum systems, and thus it can be looked as a basic concept of quantum mechanics.

Keywords

• entanglement
• particle-wave duality
• basic concepts in quantum mechanics