Entanglement, local measurements and symmetry
A A Klyachko, A S Shumovsky · Journal of Optics B Quantum and Semiclassical Optics · 2003
A definition of entanglement in terms of local measurements is discussed. Namely, the maximum entanglement corresponds to the states that cause the highest level of quantum fluctuations in all local measurements determined by the dynamic symmetry group of the system. A number of examples illustrating this definition is considered.