Entanglement Harvesting in Accelerated Systems: Field Temperature and Boundary Effects

Quantum entanglement harvesting (EH) in the relativistic setup has recently attracted much attention. The formulation studies the possibility of two uncorrelated Unruh-DeWitt detectors getting entangled over time due to the effects of quantum vacuum fluctuations, depending on the motion and the background spacetimes. We investigate the effects of field temperature T(f) on EH between two uniformly accelerated detectors. Field temperature suppresses EH for lower accelerations. However, after a critical acceleration, temperature has opposite effect. Multiple critical points are in the (1 + 3) dimension, and a single critical point is in the (1 + 1) dimension. We also consider the presence of multiple reflecting boundaries on EH. We observe that the reflecting boundaries can cause suppression or enhancement of entanglement, depending on different physical parameters. Spectral and temporal properties of accretion flows and jets around compact objects and the