Experimental test of local observer-independence · HackerPapers discussions

Experimental test of local observer-independence — mentioned by magicalhippo

Mon, 18 May 2020 09:51:36 GMT

> So measurement is just theoretical concept that relates to system physically getting immensely less fuzzy to a point we can safely assume for the sake of easier calculations that it's not fuzzy at all. It appears to be more complicated than that, see Wigner's friend[1] thought experiment and a recent experimental realization of it[2]. From the paper's abstract: "In a state-of-the-art 6-photon experiment, we realise this extended Wigner’s friend scenario, experimentally violating the associated Bell-type inequality by 5 standard deviations. If one holds fast to the assumptions of locality…

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Experimental test of local observer-independence — mentioned by Alekanekelo

Thu, 14 Nov 2019 19:31:36 GMT

A preprint of the paper is available on arXiv [1]. [1] https://arxiv.org/abs/1902.05080

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Experimental test of local observer-independence — mentioned by magicalhippo

Thu, 22 Aug 2019 20:40:33 GMT

> Wave collapse feels like nonsense, requires arbitrary notions of "observers". There's recently been a long thread over on PhysicsForums[1] about the Wiegner's friend experiment[2]. The thread was kicked off by this[3] paper detailing a realization of the experiment, in which the authors conclude "this result lends considerable strength to interpretations of quantum theory already set in an observer-dependent framework and demands for revision of those which are not." Then again as far as I can see MWI doesn't come out victorious, "one way to accommodate our result is by proclaiming that…

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Experimental test of local observer-independence — mentioned by TheOtherHobbes

Fri, 19 Apr 2019 17:54:09 GMT

Here's a nice paradox: https://arxiv.org/pdf/1902.05080.pdf

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Experimental test of local observer-independence — HN submission

Fri, 15 Mar 2019 22:23:21 GMT

Experimental rejection of observer-independence in the quantum world

187 points; 111 discussion replies on HN. Paper and source history. A submission is not an endorsement.

Experimental test of local observer-independence — HN submission

Wed, 13 Mar 2019 10:14:45 GMT

Experimental rejection of observer-independence in the quantum world

2 points; 1 discussion reply on HN. Paper and source history. A submission is not an endorsement.

Experimental test of local observer-independence — HN submission

Tue, 12 Mar 2019 10:43:08 GMT

Experimental rejection of observer-independence in the quantum world

2 points; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.