User:Patrick0Moran

Wikipedia:Babel

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My comment page.

Interests:

Equitation

Martial arts

Spiders

Counterproductive attempts to control the behavior of human beings and/or other creatures

That being said,
don't come on my back porch at night.
You have been warned! ;-)

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This "fishing spider" (Dolomedes tenebrosus) was caught on my steps at midnight. She was released after being photographed.

Photographs

AurantiaFacing.jpg
Aurantia hanging.JPG
AaurantiaQtr.jpg
AAurantiaV.jpg
Newly hatched spiderlings

Diagrams

Double-slit diffraction and interference pattern

uv and infrared x thermometers

For me

User:Patrick0Moran/Entanglement
User:Patrick0Moran/Enganglement
User:Patrick0Moran/Hanyu_Heisenberg
User:Patrick0Moran/Aitchison_article
User:Patrick0Moran/Rewrite_QM
User:Patrick0Moran/Race_discussion
User:Patrick0Moran/sandbox
User:Patrick0Moran/Heisenberg matrix
User:Patrick0Moran/Quantum_notes
Mutagens and DNA repair[1]
[2]

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Quick find

Yiyuan

Philosophical_interpretation_of_classical_physics

2πR

New

Old

11 Sept 2003

Tips

0000[[Template:Underconstruction|Underconstruction]]1111

Young_experiment.gif and Young.gif (animations) <ref name="CamelSpider">
{{cite book|
author=Punzo, Fred|
title=The Biology of Camel-Spiders|
publisher=Kluwer Academic Publishers|
date=1998}}</ref>
</nowiki> site:wikipedia.org 30 {{fact}} {{clear}}

<br clear=both> {{quotation| blah blah blah }}

$E=nhf,\,$ where $n=1,2,3,\ldots$

http://members.tripod.com/Spinnenman/ArachnEigensch.htm http://wikipedia.ramselehof.de/wikiblame.php

Chronology of QM evidence

Evidence, citations, to sort through secondary source material

In situations wherein editors have strong disagreements, assertions and arguments generally are not decisive. In my experience, a good point of evidence frequently can be decisive. A subject as fundamental as this one is often commented on by people who are contenders, who stand as writers of relevant primary materials themselves, etc. I would like to develop a kind of chain of evidence and bring materials out from behind pay walls in the form of legally permissible short quotations whenever possible. P0M (talk) 13:47, 23 April 2025 (UTC)

Arrange by decades P0M (talk) 13:53, 23 April 2025 (UTC)

1920: P0M (talk) 13:57, 23 April 2025 (UTC)

Heisenberg's breakthrough -- the new Quantum Mechanics

Schrödinger's Equation P0M (talk) 14:03, 23 April 2025 (UTC)

1930 P0M (talk) 14:04, 23 April 2025 (UTC)

1940: P0M (talk) 14:09, 23 April 2025 (UTC)

Wheeler-Feynman absorber theory P0M (talk) 14:11, 23 April 2025 (UTC)

1950: P0M (talk) 14:12, 23 April 2025 (UTC)

1960: P0M (talk) 14:15, 23 April 2025 (UTC)

1970: P0M (talk) 14:17, 23 April 2025 (UTC)

1980: P0M (talk) 14:17, 23 April 2025 (UTC)

1990: P0M (talk) 14:19, 23 April 2025 (UTC)

2000: P0M (talk) 14:22, 23 April 2025 (UTC)

Video recording of talk by John Archibald Wheeler in which he makes reference to an experiment Carroll Alley made to validate his own work. So the time of recording (not yet known for sure) was later than 1963 when Alley came to the University of Maryland and 2008 when Wheeler died. Transcript follows:

One of the most remarkable features of nature is that a Quantum can pursue two different routes, through two different slits, come together and manifest itself as a single quantum. But nothing prevents one from saying that the quantum might be a photon, to speak of quantum of radiation, or it might be an electron, to speak of a particle. A quantum can go both routes or it can go a single route. And it's possible to choose which. After the particle has already made its travel, you choose - after the particle has decided whether it's going both routes or one route, and after it's got through, you yourself decide which it shall have done. You seem to intervene to change the past. But quantum theory says it can be done. And I had the pleasure to spell out some of the features of such an experimental arrangement. My University of Maryland colleague, Carroll Alley, made changes in the experiment, but without changing the principle, and carried it out. And it checked, so that we now know it is indeed true that one can decide, at the quantum level, whether an object shall go two routes to get to its final point or just one route. You can make the decision after it's already made the trip. That sounds like a contradiction, but it works.

video: https://www.youtube.com/watch?v=u54IPWqF6no P0M (talk) 14:39, 23 April 2025 (UTC)

The Quantum Challenge, Greenstein and Zagonc, 2005, p.45

Drawing showing

Earth ⁐ Quasar with a galaxy logo in the middle of the ⁐

Figure 2-10 Hypothetic Extreme Delayed Choice Experiment. Light from a gravitationally lensed quasar is passed through a delayed choice apparatus. In such a situation, we are tempted to say that billions of years of history can be altered by our choice of whether to insert or remove the second beam splitter. P0M (talk) 15:41, 23 April 2025 (UTC)

2010: P0M (talk) 14:23, 23 April 2025 (UTC)

Wheeler’s Delayed Choice Experiment

Allyson O’Brien amo45@drexel.edu

May 25, 2010

2.2 Weird Results: Common Sense Looses!

"A more severe example is depicted in The Quantum Challenge when Greenstein explains a hypothetical delayed-choice experiment using a quasar. Light from the gravitationally lensed quasar (see figure 2)[9] is passed through a delayed-choice experiment on earth. If we then put in a second beam-splitter, according to our previous results, billions of years of history could be altered.[2]

The accompanying illustration shows two paths from a quasar and going around a galaxy to be lensed to earth. P0M (talk) 18:33, 23 April 2025 (UTC)

Was O'Brien reading the first edition of The Quantum Challenge? He does not give page numbers, and the second edition only hints at a possible explanation. Unfortunately, I can't find my first edition. P0M (talk) 18:39, 23 April 2025 (UTC)

January 2010: P0M (talk) 01:19, 24 April 2025 (UTC)

February 2010: P0M (talk) 01:21, 24 April 2025 (UTC)

March 2010: P0M (talk) 01:22, 24 April 2025 (UTC)

April 2010: P0M (talk) 01:23, 24 April 2025 (UTC)

May 2010: P0M (talk) 01:23, 24 April 2025 (UTC)

June 2010: P0M (talk) 01:23, 24 April 2025 (UTC)

July 2010: P0M (talk) 01:23, 24 April 2025 (UTC)

Demystifying the Delayed Choice Experiment, Bram Gaasbeek. Appendix A:Wheeler's thoughts. Supplies a re-drawing of one found in: [6] J.A. Wheeler, “Mathematical Foundations of Quan- tum Theory”, Academic Press (1978). The diagram provided there is rather sketchy. The one provided by Gaasbeek seems to be correct.

2025

"The Tao of It and Bit," by Cristi Stoica, has an account that is inquiring and worth reading. However, it does not seem to be on a main line from or to Greenstein. I found this looking for sources earlier than Greenstein that might have brought attention to Wheeler's work.

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