Entangled coherent states: Teleportation and decoherence

By S. J. Enk, O. Hirota. 2000

450 citations recorded by the source corpus.

When a superposition (|αi−|− αi ) of two coherent states with opposite phase falls upon a 50-50 beamsplitter, the resulting state is entangled. Remarkably, the amount of entanglement is exactly 1 ebit, irrespective of α, as was recently discovered by O. Hirota and M. Sasaki. Here we discuss decoherence properties of such states and give a simple protocol ∞

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/5b81d10edde3b89e6dd7c95c78fa9b515a5de8e4

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Preparation of non-local superpositions of quasi-classical light states (2009, background): “For φ = 0, this is the coherent Bell state |ψ0〉 above, proposed as a resource to teleport coherent qubits |ξ〉 = a|α〉+b|−α〉 [7, 18]: mixing |ξ〉 with the mode 1 on a 50/50 BS and counting photons in the output ports projects the mode 2 into |ξ〉, with the usual bit- and phase- ips depending on which co”
Hybrid discrete- and continuous-variable quantum information (2014, background): “Universal quantum computation can be executed using a measurement induced approach where gates are implemented through teleportation [102, 103] and diﬀerent gates are realized by the usage of diﬀerent types of entangled states [104, 105].”