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Violation of Bells inequality using continuous variable measurements

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Oliver Thearle, Jiri Janousek, Seiji Armstrong, Sara Hosseini, Melanie Schünemann (Mraz), Syed Assad, Thomas Symul, Matthew R. James
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Elanor Huntington, Timothy C. Ralph, Ping Koy Lam

Quantum Physics · Submitted 9 Jan 2018

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We demonstrate a violation of Bells inequality using continuous variable quadrature measurements.

how it is stated · asserted 1.00 read the record →

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arXiv ID1801.03194 (version 1)
Pith IDQD55OSF5, Pith's permanent record of this paper and its review
CitationElanor Huntington, Jiri Janousek, Matthew R. James, Melanie Sch\"unemann (Mraz), Oliver Thearle, Ping Koy Lam, Sara Hosseini, Seiji Armstrong, Syed Assad, Thomas Symul, Timothy C. Ralph. "Violation of Bells inequality using continuous variable measurements." arXiv:1801.03194 (2018). https://pith.science/paper/QD55OSF5
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,139 input tokens.

What the abstract itself states, as probabilities: claims first 0.09 · states limitation 0.06 · human participants 0.02 · controlled comparison 0.04 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.76 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

A Bell inequality is a fundamental test to rule out local hidden variable model descriptions of correlations between two physically separated systems. There have been a number of experiments in which a Bell inequality has been violated using discrete-variable systems. We demonstrate a violation of Bells inequality using continuous variable quadrature measurements. By creating a four-mode entangled state with homodyne detection, we recorded a clear violation with a Bell value of $B = 2.31 \pm 0.02$. This opens new possibilities for using continuous variable states for device independent quantum protocols.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 A Bell inequality is a fundamental test to rule out local hidden variable model descriptions of correlations between two physically separated systems. background 1.00 0.03 0.03 asserted 1.00
s1 There have been a number of experiments in which a Bell inequality has been violated using discrete-variable systems. background 0.96 0.03 0.02 asserted 1.00
s2 We demonstrate a violation of Bells inequality using continuous variable quadrature measurements. contribution 0.93 0.96 0.87 asserted 1.00
s3 By creating a four-mode entangled state with homodyne detection, we recorded a clear violation with a Bell value of $B = 2.31 \pm 0.02$. result 0.98 0.97 0.46 asserted 1.00
s4 This opens new possibilities for using continuous variable states for device independent quantum protocols. interpretation 0.98 0.25 0.41 hedged possibility 0.66

What kind of paper the classifier reports this is: empirical study 1.00 · evidence from observation or experiment 1.00.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

A Bell inequality is a fundamental test to rule out local hidden variable model descriptions of correlations between two physically separated systems. There have been a number of experiments in which a Bell inequality has been violated using discrete-variable systems. We demonstrate a violation of Bells inequality using continuous variable quadrature measurements. By creating a four-mode entangled state with homodyne detection, we recorded a clear violation with a Bell value of $B = 2.31 \pm 0.02$. This opens new possibilities for using continuous variable states for device independent quantum protocols.

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