Experimental observation of Earth’s rotation with quantum entanglement

Autor(en)

Raffaele Silvestri, Haocun Yu, Teodor Strömberg, Christopher Hilweg, Robert W. Peterson, Philip Walther

Abstrakt

Precision interferometry with quantum states has emerged as an essential tool for experimentally answering fundamental questions in physics. Optical quantum interferometers are of particular interest because of mature methods for generating and manipulating quantum states of light. Their increased sensitivity promises to enable tests of quantum phenomena, such as entanglement, in regimes where tiny gravitational effects come into play. However, this requires long and decoherence-free processing of quantum entanglement, which, for large interferometric areas, remains unexplored territory. Here, we present a table-top experiment using maximally path-entangled quantum states of light in a large-scale interferometer sensitive enough to measure the rotation rate of Earth. The achieved sensitivity of 5 μrad s−1 constitutes the highest rotation resolution ever reached with optical quantum interferometers. Further improvements to our methodology will enable measurements of general-relativistic effects on entangled photons, allowing the exploration of the interplay between quantum mechanics and general relativity along with tests for fundamental physics.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation, Forschungsverbund Quantum Aspects of Space Time

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW)

Journal

Science Advances

Band

10

Anzahl der Seiten

9

ISSN

2375-2548

DOI

https://doi.org/10.48550/arXiv.2310.16903

Publikationsdatum

06-2024

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik, 103025 Quantenmechanik, 103028 Relativitätstheorie

ASJC Scopus Sachgebiete

General

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/44d5adba-29ce-4845-bc66-0910970d4943