Probing the entanglement distillability responses to the Unruh effect and prepared states

Abstract

How the Unruh---Hawking effect and prepared states influence the entanglement distillability of a free Dirac field is investigated by using the Werner and Horodecki states. It is found that Werner and Horodecki states will be converted from distillable into the separate in the noninertial frame. The parameter $$\alpha $$? of the generic entangled states has a different effect on Werner-like and Horodecki-like states. For the Werner-like states, although the parameter $$\alpha $$? influences the entanglement, it does not change the range of the parameter $$F$$F where the entanglement distillability of the Werner-like states is possible. For the Horodecki-like states, the parameter $$\alpha $$? not only influences the entanglement but also changes the range of the parameter $$P$$P where the entanglement distillability of Horodecki-like states can be achieved.