Loopholes in Bell inequality tests of local realism

JÅ Larsson - Journal of Physics A: Mathematical and Theoretical, 2014‏ - iopscience.iop.org
Bell inequalities are intended to show that local realist theories cannot describe the world. A
local realist theory is one where physical properties are defined prior to and independent of …

Testing foundations of quantum mechanics with photons

P Shadbolt, JCF Mathews, A Laing, JL O'brien - Nature Physics, 2014‏ - nature.com
Quantum mechanics continues to predict effects at odds with a classical understanding of
nature. Experiments with light at the single-photon level have historically been at the …

Challenging local realism with human choices

Nature, 2018‏ - nature.com
A Bell test is a randomized trial that compares experimental observations against the
philosophical worldview of local realism, in which the properties of the physical world are …

Twisted photon entanglement through turbulent air across Vienna

M Krenn, J Handsteiner, M Fink, R Fickler… - Proceedings of the …, 2015‏ - pnas.org
Photons with a twisted phase front can carry a discrete, in principle, unbounded amount of
orbital angular momentum (OAM). The large state space allows for complex types of …

Challenging local realism with human choices

C Abellán, A Acín, A Alarcón, O Alibart… - arxiv preprint arxiv …, 2018‏ - arxiv.org
A Bell test is a randomized trial that compares experimental observations against the
philosophical worldview of local realism. A Bell test requires spatially distributed …

Multipartite Gaussian steering: Monogamy constraints and quantum cryptography applications

Y **ang, I Kogias, G Adesso, Q He - Physical Review A, 2017‏ - APS
We derive laws for the distribution of quantum steering among different parties in multipartite
Gaussian states under Gaussian measurements. We prove that a monogamy relation akin to …

Long-distance measurement-device-independent multiparty quantum communication

Y Fu, HL Yin, TY Chen, ZB Chen - Physical review letters, 2015‏ - APS
The Greenberger-Horne-Zeilinger (GHZ) entanglement, originally introduced to uncover the
extreme violation of local realism against quantum mechanics, is an important resource for …

Conceptual understanding through efficient automated design of quantum optical experiments

M Krenn, JS Kottmann, N Tischler, A Aspuru-Guzik - Physical Review X, 2021‏ - APS
Artificial intelligence (AI) is a potentially disruptive tool for physics and science in general.
One crucial question is how this technology can contribute at a conceptual level to help …

Breaking universal limitations on quantum conference key agreement without quantum memory

CL Li, Y Fu, WB Liu, YM **e, BH Li, MG Zhou… - Communications …, 2023‏ - nature.com
Quantum conference key agreement is an important cryptographic primitive for future
quantum network. Realizing this primitive requires high-brightness and robust multiphoton …

Experimental greenberger-horne-zeilinger-type six-photon quantum nonlocality

C Zhang, YF Huang, Z Wang, BH Liu, CF Li, GC Guo - Physical review letters, 2015‏ - APS
Quantum nonlocality gives us deeper insight into quantum physics. In addition, quantum
nonlocality has been further recognized as an essential resource for device-independent …