Strongly entangled light from planar microcavities

Pagel, D.; Fehske, Holger; Sperling, Jan; Vogel, W.

doi:10.1103/physreva.86.052313

Cited by 22 publications

(26 citation statements)

References 54 publications

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“…This description can easily be used to investigate polariton parametric scattering in momentum space [21,36], and we propose a scenario that leads to the generation of polaritons in multipartite entangled states.…”

Section: Setup For the Generation Of Entangled Lightmentioning

confidence: 99%

Multipartite entangled light from driven microcavities

et al. 2013

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The generation and the characterization of multipartite entangled light is an important and challenging task in quantum optics. In this paper the entanglement properties of the light emitted from a planar semiconductor microcavity are studied. The intracavity scattering dynamics leads to the emission of light that is described by a fourpartite W state. Its multipartite correlations are identified by using the method of entanglement witnesses. Entanglement conditions are derived, which are based on a general witness constructed from W states. The results can be used to detect entanglement of light that propagates through lossy and even turbulent media.Comment: 9 pages, 3 figures, minor correction

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Section: Setup For the Generation Of Entangled Lightmentioning

confidence: 99%

Multipartite entangled light from driven microcavities

et al. 2013

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“…In a different context, this was already pointed out in the work of Ciuti (), and more recently in Pagel et al. ().…”

Section: Introductionmentioning

confidence: 55%

Polarization entanglement generation in microcavity polariton devices

Einkemmer

Vörös

Weihs

et al. 2015

Phys. Status Solidi B

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Entanglement generation by means of microcavity exciton‐polaritons is an interesting application of the peculiar properties of these half‐light/half‐matter quasiparticles. In this paper, we theoretically investigate their luminescence dynamics and entanglement formation in single, and double cavities. We discuss the selection rules for polariton–polariton scattering in double cavities, and evaluate a number of possible parametric scattering schemes in terms of entanglement in the polarization degree of freedom, and identify the ones that are experimentally most promising.

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“…The method of separability eigenvalue equations has been used-beyond its experimental application [25,27,71]to characterize the emission of semiconductor structures [72,73], to formulate entanglement quasiprobabilities [74][75][76], and to classify quantum channels [77].…”

Section: A Entanglement Detectionmentioning

confidence: 99%

Entanglement in macroscopic systems

Sperling

2017

Phys. Rev. A

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We present a theoretical study of entanglement in ensembles consisting of an arbitrary number of particles. Multipartite entanglement criteria in terms of observables are formulated for a fixed number of particles as well as for systems with a fluctuating particle number. To access the quality of the verified entanglement, the operational measure of the entanglement visibility is introduced. As an example, we perform an analytical characterization of quantum systems composed of interacting harmonic oscillators and witness the entanglement via energy measurements. Our analysis shows that the detectable entanglement decays for macroscopic particle numbers without the need for decoherence processes and for all considered coupling regimes. We further study thermal states of the given correlated system together with the temperature dependence of entanglement

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Strongly entangled light from planar microcavities

Cited by 22 publications

References 54 publications

Multipartite entangled light from driven microcavities

Multipartite entangled light from driven microcavities

Polarization entanglement generation in microcavity polariton devices

Entanglement in macroscopic systems

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