Author Topic: Scharnhorst effect + EM field greater than the Schwinger limit =c value increase  (Read 3204 times)

Offline Giovanni

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separation simply won't happen unless energy is absorbed to allow it, making part of your reasoning circular.
Electrons and positrons are subject to field E regardless of their distance. Or would you imply that as electron and positron no longer form a dipole, they are not subject to an external field? It seems strange.

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I should have mentioned before that while an electron in free space cannot fully absorb a photon, it would typically scatter a photon, absorbing some energy from it, and effectively replacing the photon with a lower energy one travelling at a different angle. See Compton Scattering for the math.
Both before and after scattering should be valid the relationship: fλ = c0
So by analyzing the properties of light emerging from this strong field region you can know c0.

« Last Edit: 06/05/2017 04:59 PM by Giovanni »
“The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of the infinity, and it was not meant that we should voyage far.”
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Offline meberbs

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separation simply won't happen unless energy is absorbed to allow it, making part of your reasoning circular.
Electrons and positrons are subject to field E regardless of their distance. Or would you imply that as electron and positron no longer form a dipole, they are not subject to an external field? It seems strange.
Your response is not what I am saying at all. Electrons on their own are obviously subject to external fields, and the energy to accelerate them must therefore come from the fields. Also, there is no point at which an electron and positron magically stop forming a dipole, although there is a point where virtual particles have enough energy to exist as real particles.

You seem to have separated "absorbing a photon" and "accelerated by the E field" as intrinsically separate events. In reality, these are different words for the same thing. Classical electrodynamics doesn't have the concept of photons, and QED which brings in the discrete nature is hard to explain because quantum is weird. If you aren't familiar with them, I can post the classical EM equations that can be used to show how energy and momentum would balance for an electron being accelerated by the E-field.[1] These are perfectly valid equations as long as you are operating in the regime of large numbers (avoid quantum and individual photons), which should be good for an electron in a strong, roughly uniform E-field.

[1]I would do it now, but don't have my textbook in front of me, and I haven't memorized them.

Offline Giovanni

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So we have:
Photons interacting with the electron. (photon set E)
Photons interacting with positron. (photon set P)
Photons that have to go undisturbed. (photon set X)

The photons of the P and E sets break the dipoles and the X photons go undisturbed.
Why should not this be possible?
Note that the distance between photons X and the dipole at zero time is a free parameter: its value may be so large that the dipole is broken before the photons X can interact with it.

Anyway:
Suppose there is a distance D such that if the distance between the photons X and the dipole is greater than D, the dipole is broken in time and X passes undisturbed otherwise a photon of X is captured.

This distance will surely be a function of the field intensity mediated by the photons E and P. Because if this field is more intense then the dipole is first broken. Wea can choose an arbitrarly large field so we can choose a field such that D is very small.
Although the dipole appears near the X photon, it is broken before the photon reaches it.
« Last Edit: 06/05/2017 08:32 PM by Giovanni »
“The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of the infinity, and it was not meant that we should voyage far.”
― H.P. Lovecraft

Offline meberbs

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I am not sure what the relation of this post is to your original points, or what your current point is. You also included a false dichotomy at the beginning (there are options you missed).

You refer to the dipole being "broken" when I just said that that doesn't make sense. When you talk about photons that don't interact with the electron did you forget what I mentioned earlier about Compton scattering?

Offline Giovanni

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OK no problem. It is clearly your field so if you say it does not make sense then it makes no sense. Thank you for your patience and commitment to reading articles and giving me an informed opinion.
“The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of the infinity, and it was not meant that we should voyage far.”
― H.P. Lovecraft

Offline Giovanni

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I would not like to reopen the discussion but just add that the author of the text excluded the Compton effect from the model: paragraph 5 'The propagation of a photon in vacuum'
<<Also the interaction of a real photon with a pair must not exchange energy or momentum with the vacuum
(for instance, Compton scattering is not possible)>>
“The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of the infinity, and it was not meant that we should voyage far.”
― H.P. Lovecraft

Offline dustinthewind

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The research to overcome the speed of light has so far concentrated on bending space time in the appropriate ways: http://publicationslist.org/spacetimeshortcut

But this is not the only way: there is also the 'Scharnhorst effect'. Scharnhorst believed that the virtual pairs slowed down light and that, in certain circumstances, when, for example in the Casimir effect, in a space region there were less virtual pairs than normal, the value of c grew.

His demonstration uses only the maxwell equations and the quantum mechanics but is not complete in some way (I did not understand the technicalities in that regard) anyway what happens when in an area of ​​space there is an electric field greater than the Schwinger limit?
https://en.wikipedia.org/wiki/Schwinger_limit

Theoretically an electric field so intense separates the virtual pairs ... so, since the light is no longer restrained, the value of c increases?
(The wiki does not talk about the possibility of separating virtual pairs with an electric field greater than the Schwinger limit. You will find everything here: http://www.nytimes.com/1997/09/16/science/scientists-use-light-to-create-particles.html)

Schwinger's limit is not yet reachable experimentally, but in a few decades they expect it to become .... so whoever will live will see it.
What do you think?

Its interesting to think that the density of virtual pairs could influence the speed of light.  It does make sense when compared to an increased index material where matter density increases. 

I was pondering if matter attracts virtual pairs because of the charge, then the density of virtual pairs would be greater near matter.  Let us suppose energy attempts to equalize but in doing so neglects evenly distributing energy to higher density regions.  An example might be to assume we can not reach absolute zero in the vacuum because thermal radiation permeates the vacuum.  This thermal radiation may be able to distribute it self evenly over the vacuum and excite the virtual pairs into existence.  However virtual pairs are clustered around matter so this means less energy per virtual particle.  Matter existing in this dance of virtual pairs and experiencing this gradient in energy per virtual particle may experience a force. 

Does the far distant universe appear to be more red-shifted because early on there was less energy in the vacuum because of less entropy?  Is our universe inflating because of the vacuum being pumped with extra energy (entropy) inflating the plank length?  (continuous energy being lost to light and no real way to get it back.)

Maybe an event horizon is so dense that there is no wiggle room for virtual pairs to have energy and hence zero time/(kinetic energy)/(plank length).   Any incoming energy condensates into a part of the solid shell.  However, I hate to think of a black hole as lacking in kinetic energy.  Hmm...

Negative energy density is just relative to the surrounding environment and gravity is associated with a negative energy, changing non-local speed of light and I think a plank length.  One can imagine the warping of the space metric by such a change in a plank cube length which is interesting to think about. 

One however doesn't necessarily need a negative energy or some change in density of the virtual particles but rather to induce a gradient in the energy density such that matter feels this gradient.  Could such a gradient have an effect on virtual particles also giving us a route to conservation of momentum?   Could the EM drive be something similar? 


Offline Giovanni

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EmDrive:
In the article 'Does the speed of light depend on vacuum', the dependence of the virtual couple lifetime and the module of an external electric or magnetic field is calculated. Surprisingly, this relationship does not depend on the angle between the dipole and the field. I thought a way to use virtual couples for propulsion is to make life time grow more if the couple is moving in a certain direction. It should be possible with an electric field that grows very rapidly in the aforementioned direction. The virtual pairs appear with a momentum that follows a uniform distribution, those moving in the 'privileged' direction live longer so the isotropy of the momentum is broken and the apparatus accelerates in the opposite direction.
Maybe something like this happens in the emDrive. I do not know.
« Last Edit: 07/21/2017 09:28 PM by Giovanni »
“The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of the infinity, and it was not meant that we should voyage far.”
― H.P. Lovecraft

Offline dustinthewind

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EmDrive:
In the article 'Does the speed of light depend on vacuum', the dependence of the virtual couple lifetime and the module of an external electric or magnetic field is calculated. Surprisingly, this relationship does not depend on the angle between the dipole and the field. I thought a way to use virtual couples for propulsion is to make life time grow more if the couple is moving in a certain direction. It should be possible with an electric field that grows very rapidly in the aforementioned direction. The virtual pairs appear with a momentum that follows a uniform distribution, those moving in the 'privileged' direction live longer so the isotropy of the momentum is broken and the apparatus accelerates in the opposite direction.
Maybe something like this happens in the emDrive. I do not know.

That jogs my memory of another experiment where the angle of the magnetic filed and the charges spin direction didn't influence the experiment.  Instead it turned out to be quantum.  The electrons either had spin up or down and nothing in between. https://en.wikipedia.org/wiki/Stern%E2%80%93Gerlach_experiment 

I have a suspicion reguarding: https://en.wikipedia.org/wiki/Schwinger_limit that the limit can be significantly reduced if some form of resonance is induced.  Such a resonance would allow energy to build up in the pairs.  Focus would also be important.  The reason being if you annihilate a single pair they radiate light away from a single point.  To reverse the time would cause light to converge on that single point (focus). 

Some part of me wants to think that these pairs that disappear into the vacuum may be light itself.  That is low energy osculations have a linear effect and not until you reach a certain energy do you see the non-linear scattering of energy. 

I almost want to believe the vacuum would have some local frame defined on average by these phantom pairs.  Such an arrangement would define a maximum speed of light in two directions.  Light passing between pairs with different relative velocities would experience doppler shifts assocaiated with a change in frame.  Such change in frames are experienced near gravitational wells where frequency can change.  https://en.wikipedia.org/wiki/Gravitational_redshift#Experimental_Verification
One might imagine it as energy travling between virtural particles where faster moving virtural particles, lower in the gravity well, appear red-shifted to the ones above that do not yet move as fast.  Or is it space time contracting because of constant acceleration???  Or is that another side, of the same coin? 

When the local velocity or contraction of space time equals c we might have an event horizon.  Time stops and infinite contraction = zero plank length.  Does going beyond that barrier = a white hole on the other side?  Some inversion of the plank length?  Reversal of time? 

So does space drift?  Have you ever heard of Gravity probe b or the "Lens-Thirring precession" ?http://www.sciencemag.org/news/2011/05/long-last-gravity-probe-b-satellite-proves-einstein-right

or https://en.wikipedia.org/wiki/Lense%E2%80%93Thirring_precession

Basically a rotating object appears to be able to drag space time around with it causing the speed of light one way around the object to be faster than the other.  Sounds a lot life a drift in the vacuum to me. 

The problem is how to couple in a more effective manner than we currently do so as to more effectively manipulate the vacuum.  Would resonance with the vacuum do the trick? 
« Last Edit: 07/22/2017 02:16 AM by dustinthewind »

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