Experimentally generating and tuning robust entanglement between photonic qubits

Abstract

We generate and study the entanglement properties of novel states composed of three polarisation-encoded photonic qubits. By varying a single experimental parameter we can coherently move from a fully separable state to a maximally robust W state, while at all times preserving an optimally robust, symmetric entanglement configuration. We achieve a high fidelity with these configurations experimentally, including the highest reported W state fidelity.

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References in corpus (4)

• Silica-on-Silicon Waveguide Quantum Circuits
• Experimental entanglement of six photons in graph states
• Experimental demonstration of Shor's algorithm with quantum entanglement
• Experimental Observation of Four-Photon Entangled Dicke State with High Fidelity

Cited by in corpus (6)

• Multi-photon quantum interference in a multi-port integrated photonic device
• Evolution of tripartite entangled states in a decohering environment and their experimental protection using dynamical decoupling
• Broadcasting of quantum correlations in qubit-qudit systems
• Learning Algebraic Models of Quantum Entanglement
• Violation of generalized Bell inequality and its optimal measurement settings
• Detection of nonabsolute separability in quantum states and channels through moments