Probing quantum scrambling and chaos in curved spacetime via Unruh-DeWitt detectors
We introduce a local operational protocol for measuring quantum information scrambling in a curved spacetime background. In this framework, two Unruh-DeWitt (UDW) detectors, coupled to a massless conformally coupled scalar field in the Hartle–Hawking vacuum of the non-rotating (2+1)-dimensional Banados–Teitelboim–Zanel...