[General] Light with "self-torque"

[Richard Gauthier]

Hi Dan, John W, Martin and all,

   I just published my updated article  "Quantum-entangled superluminal double-helix photon produces a relativistic superluminal quantum-vortex zitterbewegung electron and positron, Part 2: Crossing Lightspeed”, dated 2 July. It’s at 
https://www.researchgate.net/profile/Richard_Gauthier2/publications <https://www.researchgate.net/profile/Richard_Gauthier2/publications>
and 
http://richardgauthier.academia.edu/research <http://richardgauthier.academia.edu/research> .

The just-published first part of the article  "Quantum-entangled superluminal double-helix photon produces a relativistic superluminal quantum-vortex zitterbewegung electron and positron” presented in Liege at the Vigier conference last August is there also. 

with best wishes,
     Richard

> On Jun 29, 2019, at 7:00 AM, Richard Gauthier <richgauthier at gmail.com> wrote:
> 
> Hi Dan,
>    Thanks for your note about this discovery of a new property of light, “self-torque"
> <Screen Shot 2019-06-29 at 6.47.22 AM.png>
> 
> 
> which is reminiscent of the superluminal double-helix model of the photon, though with clearly significant differences.
> 
> <PastedGraphic-24.png>
> 
> all the best,
>        Richard
> 
>> On Jun 29, 2019, at 2:56 AM, DataPacRat <datapacrat at gmail.com <mailto:datapacrat at gmail.com>> wrote:
>> 
>> An article I believe is of interest to the members of this list:
>> 
>> https://phys.org/news/2019-06-property.html <https://phys.org/news/2019-06-property.html>
>> 
>>> New property of light discovered
>>> by Bob Yirka, Science X Network, Phys.org
>>> 
>>> A team of researchers affiliated with several institutions in Spain and the U.S. has
>>> announced that they have discovered a new property of light—self-torque. In their paper
>>> published in the journal Science, the group describes how they happened to spot the new
>>> property and possible uses for it.
>>> 
>>> Scientists have long known about such properties of light as wavelength. More recently,
>>> researchers have found that light can also be twisted, a property called angular
>>> momentum. Beams with highly structured angular momentum are said to have orbital
>>> angular momentum (OAM), and are called vortex beams. They appear as a helix
>>> surrounding a common center, and when they strike a flat surface, they appear as
>>> doughnut-shaped. In this new effort, the researchers were working with OAM beams
>>> when they found the light behaving in a way that had never been seen before.
>>> 
>>> The experiments involved firing two lasers at a cloud of argon gas—doing so forced the
>>> beams to overlap, and they joined and were emitted as a single beam from the other side
>>> of the argon cloud. The result was a type of vortex beam. The researchers then
>>> wondered what would happen if the lasers had different orbital angular momentum and if
>>> they were slightly out of sync. This resulted in a beam that looked like a corkscrew with a
>>> gradually changing twist. And when the beam struck a flat surface, it looked like a
>>> crescent moon. The researchers noted that looked at another way, a single photon at the
>>> front of the beam was orbiting around its center more slowly than a photon at the back of
>>> the beam. The researchers promptly dubbed the new property self-torque—and not only
>>> is it a newly discovered property of light, it is also one that has never even been
>>> predicted.
>>> 
>>> The researchers suggest that it should be possible to use their technique to modulate the
>>> orbital angular momentum of light in ways very similar to modulating frequencies in
>>> communications equipment. This could lead to the development of novel devices that
>>> make use of manipulating extremely tiny materials.
>> 
>> The actual published article is at
>> https://arxiv.org/ftp/arxiv/papers/1901/1901.10942.pdf . Discovered
>> via the blog article at
>> https://science.slashdot.org/story/19/06/29/0039231/new-property-of-light-discovered
>> , where one comment links to
>> https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0056086
>> , which includes the conclusion "In conclusion, twisted waves cannot
>> carry information that is independent from the information contained
>> in plane wave modes at the same frequency."
>> 
>> 
>> Thank you for your time,
>> --
>> Dan Boese, aka DataPacRat
>> "Does aₘᵢₙ=2c²/Θ ? I don't know, but wouldn't it be fascinating if it were?"
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