Harvesting large scale entanglement in de Sitter space with multiple detectors

Abstract

We consider entanglement harvesting in de Sitter space using a model of multiple qubit detectors. We obtain the formula of the entanglement negativity for this system. Applying the obtained formula, we find that it is possible to access to the entanglement on the super horizon scale if sufficiently large number of detectors are prepared. This result indicates the effect of the multipartite entanglement is crucial for detection of large scale entanglement in de Sitter space.

18 pages, accepted version in Entropy

References in corpus (6)

• Monogamy Inequality in terms of Negativity for Three-Qubit States
• Entangling Power of an Expanding Universe
• Preservation of Positivity by Dynamical Coarse-Graining
• Infinite violation of Bell inequalities in inflation
• Entanglement of Quantum Fluctuations in the Inflationary Universe
• Entanglement dynamics in de Sitter spacetime

Cited by in corpus (21)

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• Entanglement harvesting between two inertial Unruh-DeWitt detectors from non-vacuum quantum fluctuations
• Entanglement dynamics in $\kappa$-deformed spacetime
• Entanglement harvesting of accelerated detectors versus static ones in a thermal bath
• Harvesting correlations from vacuum quantum fields in the presence of a reflecting boundary
• Harvesting Entanglement by non-identical detectors with different energy gaps
• Entanglement harvesting for different gravitational wave burst profiles with and without memory
• Signatures of gravitational wave memory in the radiative process of entangled quantum probes
• Universal role of curvature in vacuum entanglement
• Spontaneous entanglement leakage of two static entangled Unruh-DeWitt detectors
• Mutual information harvested by uniformly accelerated particle detectors
• Tripartite Entanglement Extraction from the Black Hole Vacuum
• Can the latent signatures of quantum superposition be detected through correlation harvesting?
• Minkowski vacuum entanglement and accelerated oscillator chains
• Entanglement Harvesting and Quantum Discord of Alpha Vacua in de Sitter Space
• Extraction of entanglement from quantum fields with entangled particle detectors
• Entanglement is better teleported than transmitted
• Quenched entanglement harvesting