Cluster-type entangled coherent states

Munhoz, Pablo Parmezani; Semião, F. L.; Vidiella-Barranco, A.; Roversi, J. A.

doi:10.1016/j.physleta.2008.02.009

Cited by 53 publications

(61 citation statements)

References 76 publications

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“…Generalizations to multimode systems allows the intricacies of multipsartite entanglement to become manifest in entangled coherent states, for example in Greenberger-Horne-Zeilinger and W types of states [50,51] and entangled coherent state versions of cluster states [52][53][54].…”

Section: Introductionmentioning

confidence: 99%

Review of entangled coherent states

Sanders¹

2012

J. Phys. A: Math. Theor.

212

167

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We review entangled coherent state research since its first implicit use in 1967 to the present. Entangled coherent states are important to quantum superselection principles, quantum information processing, quantum optics, and mathematical physics. Despite their inherent fragility they have produced in a conditional propagating-wave quantum optics realization. Fundamentally the states are intriguing because they are entanglements of the coherent states, which are in a sense the most classical of all states of a dynamical system. Contents

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Section: Introductionmentioning

confidence: 99%

Review of entangled coherent states

Sanders¹

2012

J. Phys. A: Math. Theor.

212

167

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“…The ECSs show noticeable properties as macroscopic entanglement when the amplitudes are sufficiently large and these properties have been extensively explored [9,15,51,52]. It is worth noting that there are studies on other types of ECSs such as multi-dimensional ECSs [53], cluster-type ECSs [54][55][56], multi-mode ECSs [57] and generalization of ECSs with thermal-state components [9,58] while we focus on two-mode ECSs in free-traveling fields in this paper.…”

Section: Bell Inequality Tests With Asymmetric Entangled Coherentmentioning

confidence: 99%

Bell-inequality tests using asymmetric entangled coherent states in asymmetric lossy environments

Park

Jeong

2015

Phys. Rev. A

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We study an asymmetric form of two-mode entangled coherent state (ECS), where the two local amplitudes have different values, for testing the Bell-Clauser-Horne-Shimony-Holt (Bell-CHSH) inequality. We find that the asymmetric ECSs have obvious advantages over the symmetric form of ECSs in testing the Bell-CHSH inequality. We further study an asymmetric strategy in distributing an ECS over a lossy environment and find that such a scheme can significantly increase violation of the inequality.

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“…With (19) and (20), one can construct the matrices (11), (13) or (14) and, through the use of (16), calculate the concurrence as defined in (15) . Fig.…”

Section: A Direct Calculationmentioning

confidence: 99%

Entanglement properties of optical coherent states under amplitude damping

Wickert

Bernardes

Loock

et al. 2011

AIP Conference Proceedings

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Through concurrence, we characterize the entanglement properties of optical coherent-state qubits subject to an amplitude damping channel. We investigate the distillation capabilities of known error correcting codes and obtain upper bounds on the entanglement depending on the non-orthogonality of the coherent states and the channel damping parameter. This work provides a first, full quantitative analysis of these photon-loss codes which are naturally reminiscent of the standard qubit codes against Pauli errors.

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Cluster-type entangled coherent states

Cited by 53 publications

References 76 publications

Review of entangled coherent states

Review of entangled coherent states

Bell-inequality tests using asymmetric entangled coherent states in asymmetric lossy environments

Entanglement properties of optical coherent states under amplitude damping

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