Entanglement of multiphoton two-mode polarization Fock states and of their superpositions
Stephen Vintskevich, D. A. Grigoriev, Nikolai Miklin, Mikhail Vladimirovich Fedorov · Laser Physics Letters · 2020
Abstract Density matrices of pure multiphoton Fock polarization states and their resultant reduced density matrices of mixed states are expressed in similar ways in terms of matrices of correlators, defined as averaged products of equal numbers of creation and annihilation operators. The degree of entanglement of considered states is evaluated for various combinations of parameters of states and characters of their reduction.