Linear optics-based entanglement concentration protocols for cluster-type entangled coherent state

@article{Sisodia2019LinearOE,
  title={Linear optics-based entanglement concentration protocols for cluster-type entangled coherent state},
  author={Mitali Sisodia and Chitra Shukla and Gui Lu Long},
  journal={Quantum Inf. Process.},
  year={2019},
  volume={18},
  pages={253}
}
We proposed two linear optics based entanglement concentration protocols (ECPs) to obtain maximally entangled 4-mode Cluster-type entangled coherent state (ECS) from less (partially) entangled Cluster-type ECS. The first ECP is designed using a superposition of single-mode coherent state with two unknown parameters, whereas the second ECP is obtained using a superposition of single-mode coherent state and a superposition of two-mode coherent state with four unknown parameters. The success… 
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References

SHOWING 1-10 OF 97 REFERENCES
Entanglement concentration for W-type entangled coherent states
An entangled coherent state (ECS) is one type of entanglement, which is widely discussed in the application of quantum information processing (QIP). In this paper, we propose an entanglement
Hybrid entanglement concentration assisted with single coherent state
TLDR
This paper proposes three entanglement concentration protocols (ECPs) for Bell-type HES, W-typeHES, and cluster-type ECPs, which can obtain the maximally entangled HES with some success probability.
Entanglement Concentration for Arbitrary Four-Photon Cluster State Assisted with Single Photons
We present an entanglement concentration protocol (ECP) to concentrate arbitrary four-photon less-entangled cluster state into maximally entangled cluster state. Different from other ECPs for cluster
Two-step entanglement concentration for arbitrary electronic cluster state
TLDR
An efficient protocol for concentrating an arbitrary four-electron less-entangled cluster state into a maximally entangled cluster state that is feasible and useful in current one-way quantum computation.
Efficient three-step entanglement concentration for an arbitrary four-photon cluster state
TLDR
An entanglement concentration protocol to concentrate an arbitrary partially-entangled four-photon cluster state that can be iterated to obtain a higher success probability and is feasible under current experimental conditions is proposed.
Efficient two-step entanglement concentration for arbitrary W states
We present two two-step practical entanglement concentration protocols for concentrating an arbitrary three-particle less-entangled W state into a maximally entangled W state assisted with single
Efficient entanglement concentration for partially entangled cluster states with weak cross-Kerr nonlinearity
TLDR
The present protocol is based on optical elements, single polarization photons, cross-Kerr nonlinearity, and the conventional photon detectors, which are feasible with existing experimental technology and make this protocol more efficient and more convenient than others in the applications in quantum communication.
Quantum-information processing for a coherent superposition state via a mixedentangled coherent channel
An entangled two-mode coherent state is studied within the framework of $2\times 2$ dimensional Hilbert space. An entanglement concentration scheme based on joint Bell-state measurements is worked
Efficient single-photon-assisted entanglement concentration for partially entangled photon pairs
We present two realistic entanglement concentration protocols (ECPs) for pure partially entangled photons. A partially entangled photon pair can be concentrated to a maximally entangled pair with
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