Entanglement of multiphoton polarization Fock states and their superpositions

2018/12/30 by Stephen Vintskevich, D. A. Grigoriev, Vintskevich, S. V. +5
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.1812.11462

openalex publication_date 2018/12/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Density matrices of pure multiphoton Fock polarization states and of arising from them 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. Degree of entanglement of considered states is evaluated for various combinations of parameters of states and character of their reduction.

Related

• Entanglement and classical nonseparability convertible from orthogonal polarizations
• Biphoton Double-Bell States and Ququarts with "Invisible" Variables
• On the quantum polarization and entanglement of superposition of two two-mode coherent states
• Transition from pure-state to mixed-state entanglement by random scattering
• Matrix product states and projected entangled pair states: Concepts, symmetries, theorems