Entanglement dynamics in de Sitter spacetime
arXiv:1706.09175 · doi:10.1088/1361-6382/aa8e31
Abstract
We apply the master equation with dynamical coarse graining approximation to a pair of detectors interacting with a scalar field. By solving the master equation numerically, we investigate evolution of negativity between comoving detectors in de Sitter space. For the massless conformal scalar field, it is found that a pair of detectors can perceive entanglement beyond the Hubble horizon scale if the initial separation of detectors is sufficiently small. At the same time, violation of the Bell-CHSH inequality on the super horizon scale is also detected. For the massless minimal scalar field, on the other hand, the entanglement decays within Hubble time scale owing to the quantum noise caused by particle creations in de Sitter space and the entanglement on the super horizon scale cannot be detected.
16 pages, accepted version in Class. Quantum Gravity
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- Open Quantum Entanglement: A study of two atomic system in static patch of de Sitter space
- Communication through quantum fields near a black hole
- Harvesting entanglement from complex scalar and fermionic fields with linearly coupled particle detectors
- Schrödinger's cat for de Sitter spacetime
- Entanglement dynamics in -deformed spacetime
- Thermality, causality and the quantum-controlled Unruh-deWitt detector
- Superadditivity of channel capacity through quantum fields
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- The Berry phase from the entanglement of future and past light cones: detecting the timelike Unruh effect
- Superhorizon entanglement from inflationary particle production
- Vacuum state in de Sitter spacetime with static charts
- Continuous-variable quantum teleportation with vacuum-entangled Rindler modes
- Duality in the dynamics of Unruh-DeWitt detectors in conformally related spacetimes
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- Symmetry Resolved Entanglement Entropy in Hyperbolic de Sitter Space
- Atom-field dynamics in curved spacetime
- Entanglement is better teleported than transmitted
- Late-time quantum radiation by a uniformly accelerated detector in de Sitter spacetime
- Entanglement on curved hypersurfaces: A field-discretizer approach