Hyperentangled mixed phased Dicke states: optical design and detection

Abstract

We present an experimental method to produce 4-qubit phased Dicke states, based on a source of 2-photon hyperentangled states. By introducing quantum noise in the multipartite system in a controlled way, we have tested the robustness of these states. To this purpose the entanglement of the resulting multipartite entangled mixed states has been verified by using a new kind of structural witness.

arXiv comment6 pages, 3 figure, supplementary information included

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Cited by in corpus (21)

• Integrated photonic quantum gates for polarization qubits
• Testing the Structure of Multipartite Entanglement with Bell Inequalities
• Fully nonlocal quantum correlations
• Experimental Quantum Networking Protocols via Four-Qubit Hyperentangled Dicke States
• Classification of Entanglement in Symmetric States
• Verification of phased Dicke states
• Disorder overtakes Order in Information Concentration over Quantum Networks
• Extremal Quantum Correlations: Experimental Study with Two-qubit States
• Experimentally implementable criteria revealing substructures of genuine multipartite entanglement
• Quantum channel detection
• Quantifying entanglement with scattering experiments
• Collective randomized measurements in quantum information processing
• Tomographic characterisation of correlations in a photonic tripartite state
• Entanglement detection by Bragg scattering
• Witnessing entanglement in hybrid systems
• All possible permutational symmetries of a quantum system
• On the non-$k$-separability of Dicke class of states and $N$-qudit W states
• Detection methods to rule out completely co-positive and bi-entangling operations
• Noise robustness in the detection of non separable random unitary maps
• Engineering a C-Phase quantum gate: optical design and experimental realization
• Linear Optical Schemes to Postselect High-Dimensional Dicke States