We make the observation that a brane universe accelerates through its bulk spacetime, and so may be interpreted as an Unruh observer. The bulk vacuum is perceived to be a thermal bath that heats matter fields on the brane. It is shown that, aside from being relevant in the early universe, an asymptotic temperature exists for the brane universe corresponding to late time thermal equilibrium with...

We investigate the entanglement dynamics for a quantum system composed of two uniformly accelerated Unruh-DeWitt detectors in different spacetime dimensions. It is found that range parameters which can be generated expanded but amount decreased with increasing dimension, by calculating evolution two-atom states using method open systems. study between atoms initial states, and influence corresp...

We compute the transition rate of an Unruh-DeWitt detector coupled both to a ground state and KMS massless, conformally scalar field on static BTZ black hole with Robin boundary conditions. observe that, although anti-Hawking effect is manifest for state, this not case state. In addition, we show that our analysis applies minor modifications also anti-Unruh Rindler-AdS$_3$ spacetime.

Old results of Letaw on scalar vacuum radiation patterns that could be of interest for phonon analogies are used to emphasize the radio-metric nature of the Frenet-Serret invariants of the stationary worldlines, rather than sticking to the thermal interpretation of the vacuum excitations as apparent for the uniformly accelerated quantum detector (Unruh's interpretation). I focus next on the ele...

We make a detailed comparison between entanglement harvesting for uniformly accelerated detectors in vacuum and static ones thermal bath at the Unruh temperature find that, small energy gap relative to Heisenberg of detectors, can harvest more possess comparatively larger harvesting-achievable range than ones; however, as grows sufficiently large, are instead likely relatively inertial bath. In...