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RECENT POSTS IN THIS TOPIC

austin fearnley: on 5/15/20 at 11:03am UTC, wrote I added this comment at https://fqxi.org/community/forum/topic/3550 which...

sherman jenkins: on 5/14/20 at 21:49pm UTC, wrote Austin: A new era dawns.  Old questions become quaint and historical. ...

austin fearnley: on 5/4/20 at 22:58pm UTC, wrote Terry Thank you for your kind comments on my essay. You mentioned:...

Terry Bollinger: on 5/2/20 at 15:22pm UTC, wrote Austin, I think your analysis is both interesting and solid. What I found...

austin fearnley: on 5/2/20 at 14:56pm UTC, wrote Some additional notes. Malus's Law has results as two intensities, adding...

austin fearnley: on 4/25/20 at 16:14pm UTC, wrote Dear Mr Gupta Thank you for your generous comments. I agree that my...

Satyavarapu Gupta: on 4/25/20 at 10:04am UTC, wrote Dear Your nice essay is telling that time travel into past is impossible...

austin fearnley: on 4/23/20 at 12:11pm UTC, wrote Essay Abstract This paper shows a backwards-in-time solution to...


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FQXi FORUM
September 19, 2021

CATEGORY: Undecidability, Uncomputability, and Unpredictability Essay Contest (2019-2020) [back]
TOPIC: Malus Law with local hidden variables, and a backwards-in-time solution for Bell’s Theorem by austin james fearnley [refresh]
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Author austin fearnley wrote on Apr. 23, 2020 @ 12:11 GMT
Essay Abstract

This paper shows a backwards-in-time solution to Bell’s Theorem. This solution assumes that antiparticles actually do travel backwards in time and therefore the experiment begins not at the usual source of particle pairs but at (say) Alice’s measurement of a positron and ends at Bob’s measurement of the electron. A second assumption is that the distribution of hidden variables in a polarised beam can be inferred using Malus Law. Once that is assumed, the simple calculations used in Malus Law complete the proof. If Alice measures the positrons then the electrons travelling to Bob are polarised either along Alice’s vector a or along –a. So Bob’s apparatus is acting like a Malus filter taking a polarised beam as input. However, although this arrangement satisfies the result of a Bell experiment having a correlation between Alice’s and Bob’s measurements of -cos θ, and uses the local hidden variables of particles, it is impossible to simulate the experiment using individualised local hidden variables. This is because of a disconnect in knowledge about the hidden variable vector of an individual particle after a measurement by a Stern - Gerlach detector apparatus or a filter. The polarisation state, if any, of the incoming beam of positrons is unknown. After measurement by Alice they are polarised along vector a, and after measurement by Bob the electrons are polarised along vector b. But the correlation is between the unknown hidden variables before Alice makes the measurement and the polarised beam measured by Bob. It is impossible to follow an individual hidden vector through these measurements even in a simulation.

Author Bio

Retired researcher into school examinations with a UK examining board. My B.Sc. degree is in mathematics and statistics.

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Satyavarapu Naga Parameswara Gupta wrote on Apr. 25, 2020 @ 10:04 GMT
Dear

Your nice essay is telling that time travel into past is impossible even to simulate, well said that.

For support your words............ In conclusion, the results of a time-reversed Bell experiment is explainable without the complication of entanglement. The explanation cannot be simulated using individualised local hidden variables but can be explainable using a probabilistic treatment of local hidden variables......... and ........It is impossible to follow an individual hidden vector through these measurements even in a simulation.......

You analised correctly!!

In Dynamic Universe Model also , there is no traveling back in time!!

Hope you can spend a little time on my essay "A properly deciding, Computing and Predicting new theory’s Philosophy" and give your valuable comments

Best Regards

=snp

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Author austin fearnley replied on Apr. 25, 2020 @ 16:14 GMT
Dear Mr Gupta

Thank you for your generous comments.

I agree that my conclusion for the reverse-time Bell experiment is not good for showing the existence of local hidden variables, even with time reversed for antiparticles. But the use of local hidden variables to explain the normal Bell experiment result is also not apparent under the QM explanation. However, my essay suggests...

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Author austin fearnley wrote on May. 2, 2020 @ 14:56 GMT
Some additional notes.

Malus's Law has results as two intensities, adding to 100%, and so having only one degree of freedom. Photons passing through a filter (at any set angle) and those which do not pass. So the results fit into a 2x1 table. If we repeat that experiment, at the same set angle, then the second set of results also forms an (ideally) identical 2x1 table. There are no...

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Terry Bollinger wrote on May. 2, 2020 @ 15:22 GMT
Austin,

I think your analysis is both interesting and solid. What I found most interesting about it is that you used starting points that are very different from the ones taught in physics classes on these issues, yet came to conclusions that are not much different from some much more complicated analyses of similar issues. I think your use of antiparticles going backward in time to explain...

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Author austin fearnley wrote on May. 4, 2020 @ 22:58 GMT
Terry

Thank you for your kind comments on my essay.

You mentioned: "reminiscent both of what Wheeler and Feynman did in their pre-QED advanced-retarded photon work". I have long had a copy, in book form, of Feynman's thesis so I am aware of advanced and retarded waves in time. You also mentioned on your essay website page that John Cramer's TIQM may be relevant in a similar way. ...

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sherman loran jenkins wrote on May. 14, 2020 @ 21:49 GMT
Austin:

A new era dawns.  Old questions become quaint and historical.  Is the whole community ready?  Or is physical reality too dangerous for our collective understanding at this time? 

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Author austin fearnley wrote on May. 15, 2020 @ 11:03 GMT
I added this comment at https://fqxi.org/community/forum/topic/3550

which is the page of Gyongyi Bokor

Some of your ideas have resonance with my essay in which antimatter is suggested to travel backwards in time. In my essay I bypass Bell's Theorem by the use of antimatter travelling backwards in time. Bell's Theorem is absolutely correct of course in normal circumstances. By normal...

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