Distance and coupling dependence of entanglement in the presence of a quantum field
Distance and coupling dependence of entanglement in the presence of a quantum field
We study the entanglement between two coupled detectors, whose internal degrees of freedom are modeled by harmonic oscillators, interacting with a common quantum field, paying special attention to two less studied yet important features: finite separation and direct coupling. Distance dependence is essential in quantum teleportation and relativistic quantum information …