Multipartite entangled light from driven microcavities

Abstract

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.

9 pages, 3 figures, minor corrections

References in corpus (9)

• Entanglement detection
• Quantifying Entanglement with Witness Operators
• Multipartite Entanglement Witnesses
• Quantum light in the turbulent atmosphere
• Necessary and sufficient conditions for bipartite entanglement
• Determination of the Schmidt number
• Tripartite entanglement in parametric down-conversion with spatially-structured pump
• Dynamics-Controlled Truncation Scheme for Nonlinear Dynamics in Semiconductor Microcavities
• Mollow "quintuplets" from coherently-excited quantum dots

Cited by in corpus (11)

• Entanglement in macroscopic systems
• Quantum correlations in composite systems
• Nonclassical light from few emitters in a cavity
• Entanglement verification of noisy N00N states
• Full Stark Control of Polariton States on a Spin-Orbit Hypersphere
• Entanglement-assisted quantum speedup: Beating local quantum speed limits
• Testing locality and noncontextuality with the lowest moments
• Entanglement generation in microcavity polariton devices
• Quantum walks and entanglement in cavity networks
• Entangled light from driven dissipative microcavities
• Generation, dynamical buildup and detection of bi- and mulipartite entangled states in cavity systems