Gravity-mediated entanglement between oscillators as quantum superposition of geometries

Autor(en)

Ofek Bengyat, Andrea Di Biagio, Markus Aspelmeyer, Marios Christodoulou

Abstrakt

Protocols for observing gravity induced entanglement typically comprise the interaction of two particles prepared either in a superposition of two discrete paths or in a continuously delocalized (harmonic oscillator) state of motion. An important open question has been whether these two different approaches allow one to draw the same conclusions on the quantum nature of gravity. To answer this question, we use a path-integral approach to analyze a setup that contains both features: a superposition of two highly delocalized center of mass states. In both cases the appearance of entanglement, within linearized quantum gravity, is due to gravity being in a superposition of distinct geometries.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW)

Journal

Physical Review D

Band

110

Anzahl der Seiten

8

ISSN

2470-0010

DOI

https://doi.org/10.1103/PhysRevD.110.056046

Publikationsdatum

09-2024

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik

ASJC Scopus Sachgebiete

Nuclear and High Energy Physics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/4c2edb63-7214-4448-9f8e-2674d3fe9053