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research article

Multipartite polariton entanglement in semiconductor microcavities

Liew, T. C. H.  
•
Savona, V.  
2011
Physical Review A

We study the entanglement of multiple polariton modes, which results in continuous variable cluster states suitable for quantum computation. Schemes are based on parametric scattering between spin-polarized lower and upper polariton branches in planar microcavities or spin-polarized orbital angular momentum states in mesa structures. Such systems are modeled by numerical solution of truncated density matrices and compared to the solution of the Heisenberg equations for the set of field correlators up to third order. Four-body entanglement is evidenced by violation of the van Loock-Furusawa quadripartite inequalities. We show that the entanglement is able to withstand a realistic strength of pure dephasing present in typical systems.

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Type
research article
DOI
10.1103/PhysRevA.84.032301
Web of Science ID

WOS:000294400800001

Author(s)
Liew, T. C. H.  
•
Savona, V.  
Date Issued

2011

Published in
Physical Review A
Volume

84

Article Number

032301

Subjects

Vertical Triple Microcavities

•

Strong-Coupling Regime

•

Parametric Oscillation

•

Continuous-Variables

•

Quantum Computation

•

Condensate

•

Scattering

•

Wells

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LTPN  
Available on Infoscience
December 16, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/73614
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