Robust self testing of the 3-qubit $W$ state

Abstract

Self-testing is a device independent method which can be used to determine the nature of a physical system or device, without knowing any detail of the inner mechanism or the physical dimension of Hilbert space of the system. The only information required are the number of measurements, number of outputs of each measurement and the statistics of each measurement. Earlier works on self testing restricted either to two parties scenario or multipartite graph states. Here, we construct a method to self-test the three-qubit $W$ state, and show how to extend it to other pure three-qubit states. Our bounds are robust against the inevitable experimental errors.

9 pages, 2 figures

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Cited by in corpus (6)

• Device-independent tomography of multipartite quantum states
• Decoherence Effects on the Non-locality of Symmetric States
• Nonlocality of $W$ and Dicke states subject to losses
• Efficient Fusion of Photonic W-states with Nonunitary Partial-swap Gates
• Self-testing of different entanglement resources via fixed measurement settings
• Self-testing of symmetric three-qubit states