Entanglement swapping with non-Gaussian resources |
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Authors: | Ye-Qi Zhang |
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Affiliation: | Physics Department , Zhejiang Institute of Modern Physics, Zhejiang University , Hangzhou 310027 , People's Republic of China |
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Abstract: | We investigate the entanglement swapping of non-Gaussian states, including squeezed number states, two-mode photon-added states, and two-mode photon-subtracted squeezed states and analyze the entanglement of the swapped states by adopting logarithmic negativity as the measure of entanglement. Furthermore, we examine the fidelity of teleportation protocols for different input states where the swapped states serve as the quantum channel. All these results are compared with that obtained in the case of Gaussian two-mode squeezed vacuum. |
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Keywords: | non-Gaussian states entanglement swapping quantum teleportation joint measurement |
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