Bipartite quantum channels using multipartite cluster-type entangled coherent states
arXiv:0912.1949 · doi:10.1103/PhysRevA.81.042305
Abstract
We propose a particular encoding for bipartite entangled states derived from multipartite cluster-type entangled coherent states (CTECSs). We investigate the effects of amplitude damping on the entanglement content of this bipartite state, as well as its usefulness as a quantum channel for teleportation. We find interesting relationships among the amplitude of the coherent states constituting the CTECSs, the number of subsystems forming the logical qubits (redundancy), and the extent to which amplitude damping affects the entanglement of the channel. For instance, in the sense of sudden death of entanglement, given a fixed value of the initial coherent state amplitude, the entanglement life span is shortened if redundancy is increased.
6 pages, 3 figures, REVTeX 4.1, BibTeX
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Cited by in corpus (8)
- Review of Entangled Coherent States
- Journeys from Quantum Optics to Quantum Technology
- Entanglement properties of optical coherent states under amplitude damping
- Bell inequality tests using asymmetric entangled coherent states in asymmetric lossy environments
- Exact dynamics for optical coherent-state qubits subject to environment noise
- Genuine multipartite nonlocality of entangled thermal states
- Generation of distributed entangled coherent states over a lossy environment with inefficient detectors
- Transmission losses in optical qubits for controlled teleportation