On Loopholes and Experiments

Autor(en)

Marissa Giustina

Abstrakt

It is particularly striking that the concept of local realism would allow itself to be tested in an experiment. Thus in a conference celebrating the theoretical breakthrough of Bell's inequality, it seems fitting to consider the recent progress toward such a laboratory realization. This essay will followmy brief presentation at the 2014 [Un] Speakables conference, and takes two parts. The first part is an overview and discussion of the "most important" loopholes. The second part outlines our recent experiment violating Bell's inequality with entangled photons, continuing with an outline of what improvements are needed for such an experiment to close all aforementioned loopholes simultaneously. The pace of this review is significantly slower than that of the talk. Those who understand Bell's inequality and the various loopholes can comfortably skip the first section; those well acquainted with photonic tests of Bell's inequality will likely learn little from reading the second section. However, to those with only limited background in the field, my hope is that you will find in this note a concise introduction to the motivations and challenges inherent in the construction of a "definitive" Bell test using photons.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW), Vienna Center for Quantum Science and Technology (VCQ)

Seiten

485-501

Anzahl der Seiten

17

DOI

https://doi.org/10.1007/978-3-319-38987-5_29

Publikationsdatum

2017

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik

Schlagwörter

ASJC Scopus Sachgebiete

Philosophy, Arts and Humanities (miscellaneous), History and Philosophy of Science, Social Sciences (miscellaneous), Sociology and Political Science

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c9da7b7a-ae03-4808-b684-e1760cc85077