Efficient generation of multipartite W state via quantum eraser

Abstract

Entanglement among multiple particles is a keystone for not only fundamental research on quantum information but also various practical quantum information applications. In particular, W state has attracted a lot of attention due to the robustness against particle loss and the applications in multiparty quantum communication. However, it is challenging to generate photonic W state with large number of photons since N-photon W state requires superposition among N probability amplitudes. In this paper, we propose an efficient linear optical scheme to generate N-photon W state via quantum erasure. The success probability of our protocol polynomially decreases as the number of photons increase. We also discuss the experimental feasibility of our protocol, and anticipate that one can efficiently generate tens of photonic W state with our scheme using currently available quantum photonics technologies.

arXiv commentComments are welcome. A few references are added

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Cited by in corpus (13)

• Deterministic preparation of W states via spin-photon interactions
• Entangling three identical particles via spatial overlap
• Generating Bell states and $N$-partite $W$ states of long-distance qubits in superconducting waveguide QED
• Unified generation and fast emission of arbitrary single-photon multimode $W$ states
• Efficient linear optical generation of a multipartite W state
• Graph Picture of Linear Quantum Networks and Entanglement
• Shortcut to Multipartite Entanglement Generation: A Graph Approach to Boson Subtractions
• Generating Greenberger-Horne-Zeilinger states using multiport splitters
• Arbitrary entanglement of three qubits via linear optics
• Multipartite entanglement generation in coupled microcavity arrays
• On safe post-selection for Bell tests with ideal detectors: Causal diagram approach
• Transmission and generation of arbitrary W states via an optomechanical interface
• Linear Optical Schemes to Postselect High-Dimensional Dicke States