publication . Article . 2017

Entanglement of the vacuum between left, right, future, and past spacetime states: The origin of entanglement-induced quantum radiation

Higuchi, Atsushi; Yamamoto, Kazuhiro; Ueda, Kazushige; Iso, Satoshi;
Open Access English
  • Published: 31 Oct 2017
  • Country: United Kingdom
The Minkowski vacuum state is expressed as an entangled state between the left and right Rindler wedges when it is constructed on the Rindler vacuum. In this paper, we further examine the entanglement structure and extend the expression to the future (expanding) and past (shrinking) Kasner spacetimes. This clarifies the origin of the quantum radiation produced by an Unruh–DeWitt detector in uniformly accelerated motion in the four-dimensional Minkowski spacetime. We also investigate the two-dimensional massless case where the quantum radiation vanishes but the same entanglement structure exists.
arXiv: General Relativity and Quantum Cosmology
free text keywords: 3100
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue