Simulating Indefinite Causal Order With Rindler Observers

Aleksandra Dimić; Marko Milivojević; Dragoljub Gočanin; Natália S. Móller; Časlav Brukner

doi:10.3389/fphy.2020.525333

Titel

Simulating Indefinite Causal Order With Rindler Observers

Autor*in

Aleksandra Dimić

Faculty of Physics, University of Belgrade

Marko Milivojević

Faculty of Physics, University of Belgrade

Dragoljub Gočanin

Faculty of Physics, University of Belgrade

... show all

Abstract

Realization of indefinite causal order (ICO), a theoretical possibility that even causal relations between physical events can be subjected to quantum superposition, apart from its general significance for the fundamental physics research, would also enable quantum information processing that outperforms protocols in which the underlying causal structure is definite. In this paper, we start with a proposition that an observer in a state of quantum superposition of being at two different relative distances from the event horizon of a black hole, effectively resides in ICO space-time generated by the black hole. By invoking the fact that the near-horizon geometry of a Schwarzschild black hole is that of a Rindler space-time, we propose a way to simulate an observer in ICO space-time by a Rindler observer in a state of superposition of having two different proper accelerations. By extension, a pair of Rindler observers with entangled proper accelerations simulates a pair of entangled ICO observers. Moreover, these Rindler-systems might have a plausible experimental realization by means of optomechanical resonators.

Stichwort

Rindler observerquantum switchindefinite causal orderequivalence principlecausality

Objekt-Typ

journal article

Sprache

Englisch [eng]

Persistent identifier

https://phaidra.univie.ac.at/o:1230450

DOI

10.3389/fphy.2020.525333

Erschienen in

Titel