Russian scientists develop signal transmission technology using plasmon polaritons

Specialists from the Samara and Novosibirsk State Universities, as well as other scientific institutions in Russia, are working on the problem of plasmonic terahertz coupling. Russian scientists are developing a signal transmission technology using plasmon polaritons.

The authors of the study published its results in the specialized scientific journal Journal of Optics.

The technology developed by the Russians is unique. It will create a multi-channel communication based on new principles. With its help, you can transmit several signals at the same frequency at the same time at a speed close to the speed of light.

This technology uses plasmon polaritons. These are oscillations of electrons of metals and an electric field connected with each other, which occur in the border zone between the surfaces of metals and materials that do not conduct electricity. Polaritons combine the properties of particles and waves simultaneously. They propagate along the surface of a conductor having a cylindrical field, while rotating in different directions at different speeds.

Evidence of the possibility of converting a vortex beam into vortex plasmons and back into a vortex beam with the conservation of topological charge opens the way for the development of plasmonic communication lines with encoding and decoding information at the stage of free waves

the researchers note in their report.

Comments

[Zamira]

The technology developed by the Russians is unique. It will create a multi-channel communication based on new principles. With its help, you can transmit several signals at the same frequency at the same time at a speed close to the speed of light.

Interesting. But it is not clear. (
Maybe someone can explain the thread on the fingers, what it can give us in practice?

[alovrov]

What is incomprehensible here? The signal travels at the speed of light, which is very fast. True, all electromagnetic oscillations propagate at about the same speed, but the writer is probably not aware of this)

[Zamira]

Quote: alovrov

True, all electromagnetic oscillations propagate at about the same speed, but the writer is probably not aware of this)

That is, nothing revolutionary, and in practice there is no benefit.
Clear.
And thanks for the reply :)

[Grandfather]

neimeemanalogof, to whom it is not clear, in the FSB for clarification.

[Shurik70]

These are interconnected oscillations of the electrons of metals and the electric field that occur in the border zone between the surfaces of metals and non-conductive materials.

If we are talking about the quantum connection of entangled particles, then what does the speed of light have to do with it?
Quantum communication is instantaneous, and does not depend on the distance distance.
And when could electrons make it entangled? So far, this has only been possible with photons.
And what kind of "non-conductiveЪ electricity of materials" (and even with the letter "yat"), it was impossible to write a "dielectric" if they were writing a pseudo-scientific article?

[And Us Rat]

Quote: Shurik70

we are talking about the quantum connection of entangled particles

No, it doesn't.

[Shurik70]

Quote: And Us Rat

No it doesn't go

Even if we are talking about just a fundamentally new type of multichannel transmission antenna, this does not explain why the author does not know the word "dielectric".
Speaking of the antenna. For widespread implementation in the antenna, the most important thing is the cost. There is not a word about this in the article. So even if they create something worthwhile, but at the cost of hundreds of thousands, it will remain the lot of the army, and then the elite units.

[bk316]

Clear.

It is unlikely However, like Alexander, otherwise he would have written not only what he wrote, but
With its help, you can transmit several signals at the same frequency at the same time.

That is, it allows you to "bypass" the Kotelnikov theorem, as far as I understand, due to polarization. It is now clear?

[Virus-free crown]

It is now clear!!!
I went to find out about the theorem and polarization on Wikipedia))))))

[bk316]

I went to wikipedia to find out about the theorem and polarization

Learned ? Again unclear?
Let me explain.
Kotelnikov's theorem, it is also in a particular form the Nyquist theorem, it is also in a generalized form the second Shannon theorem is a difficult thing to understand. Therefore, I vulgarize especially for you. The information transfer rate is limited by the frequency of the signal transmitting (coding) this information.

Therefore, for example, on ultra-long waves (used to communicate with submarines), nothing but the "begin" signal can be transmitted.
And by the way, pay attention to the speed of information transfer cannot be compared with the speed of light. They have different sizes. First bits per second and the second meters per second.

However, this applies specifically to coding signals having a wave structure. As you know, the fastest channel is Kamaz loaded with hard drives. So these very plasmon wastes are in practice both waves and particles. Which allows, as in the case of Kamaz, to "bypass" the Kotelnikov theorem. And how do not ask me, I'm not a physicist, I'm a mathematician.

[Zamira]

Quote: bk316

That is, it allows you to "bypass" the Kotelnikov theorem, as far as I understand, due to polarization. It is now clear?

Well, I don’t know ... (Now, if I had at least an approximate idea of ​​\uXNUMXb\uXNUMXbwho Kotelnikov is and what his theorem is about, as well as what the hell is "polarization", then possibly (although not certain) ), and understand something ...
I asked to explain on the fingers what kind of beast "plasma terahertz communication" is, and what can it give in practice?
Now I no longer ask what it is, because see above .
But what it gives in practice, and how it can help our army, I would still like to know.
Well, here's an example: is it possible with the help of this very "plasma" to create such a conference call between the commander and subunits that is absolutely protected from enemy interception?

[bk316]

Well, here's an example: is it possible with the help of this very "plasma" to create such a conference call between the commander and subunits that is absolutely protected from enemy interception?

Any communication, including quantum communication, can be suppressed by muting the signal, that is, changing the signal-to-noise ratio. No a correctly encrypted communication cannot currently be "intercepted" in the sense of being decrypted. And for encryption and for the fight against suppression, you have to pay with redundant information in the channel. Therefore, a "miracle connection" that is not jammed and not intercepted can be easily created if you have a channel with a significantly excessive transmission rate (this, too, by the way, Shannon proved). It is this invention that serves to create such a channel. But only here is a huge distance from idea to implementation.
Quantum communication is a little bit about something else. Quantum communication allows you to determine whether someone has read information from the channel, since each reading changes the useful signal. It is possible that this described type of connection also has such a property.

[Zamira]

Quote: bk316

Therefore, a "miracle connection" that is not jammed and not intercepted can be easily created if you have a channel with a significantly excessive transmission rate (this, too, by the way, Shannon proved). It is this invention that serves to create such a channel.

That is, the information transfer rate simply must be higher than the expected interception or interference rate. Did I understand correctly? (Well, if it's rude, on the fingers ) And it turns out that the practical application of this very "plasma" is quite real and useful.

Quote: bk316

But only here is a huge distance from idea to implementation.

This is understandable, but... it's a shame... :)

[solar]

Plasmon-polaritons are formed at the interface between a metal and a dielectric, that is, we are not talking about wireless communication. It is believed that this technology can provide faster information transfer, and many are now working with it.
According to the phrase

Evidence of the possibility of transforming a vortex beam into vortex plasmons and back into a vortex beam with topological charge conservation opens the way

it is still very far from any practical implementation, we are talking about general things.

[Slavianin_37]

For every difficult question, there is a quick and wrong answer.

[Slavianin_37]

And how does the same speed characterize noise immunity? Are you in courses? Enlighten the public?

[igorbrsv]

In short, some bullshit. It is possible to transmit as now at different frequencies. And here the speed?
She is the same.
Whether or not you can mute it is another matter. Or intercept. Or decode.
The rest is redundant information.

[Zamira]

Quote: igorbrsv

you can mute it or not. Or intercept. Or decode.

That's exactly what I'm interested in. :)

[shikin]

"They propagate along the surface of the conductor," - it seems to be talking about a wired connection.

[bk316]

Maybe someone can explain the thread on the fingers, what it can give us in practice?

It is written in Russian there.

With its help, you can transmit several signals at the same frequency at the same time at a speed close to the speed of light.

[Nikolaevich I]

Quote: Zamira

Interesting. But it is not clear. (

You still rejoice that it was not Gridasov who wrote the article! Otherwise it would be for sure (!) ... "I broke all my brains into pieces ... I braided all the convolutions!" ... (I haven't "heard" him for a long time! I miss him!)

[And Us Rat]

Quote: Zamira

can anyone explain in a nutshell

They are mastering a new wave range - super duper short waves.

Quote: Zamira

what can it give us in practice?

In applied physics - a new field for research. In the military sphere - nothing.

[igorbrsv]

In short, how is it .... A theory that has proof becomes an absolute truth, a theory that does not have proof turns into a scientific problem

[Seraphimamur]

The value of these studies lies in the possibility of encrypting and decrypting information. Using multichannel on one line. I understand. It seems to me that this is not so costly and effective than the use of quantum computers.

[Vladimir80]

and for starters, just copy normal walkie-talkies and satellite communications weakly ??? or the hegemon does not allow???

[Galleon]

Scientists have to develop, copy designers and technologists. But there is no one who wants to go into this work for a penny. Communication ... Here the chips would be copied on something and there would be someone.

[Rom8681]

And why. We immediately make unparalleled in the world

[igorbrsv]

. And why. We immediately make unparalleled in the world

That was. Under the Soviet Union, we didn’t need a lot of things, but now it’s useful. The time for those other developments has only come

[HumbleCivilian]

The technology developed by the Russians is unique. It will create a multi-channel communication based on new principles

Is this such a subtle mockery of the state of communications in the RF Armed Forces?

[Slavianin_37]

What? Is there still pigeon mail in Russia? Is an Italian, French or German connection better?

[HumbleCivilian]

Better? And what is better, open analog radio communication or encrypted digital?

There is no pigeon mail yet, but the R-123 of the 1959 model is in stock

[voyaka uh]

At one time, rofar was fashionable ...?
Meanwhile, the Chinese already have quantum photonic communication between several satellites in orbit.
No noise or dust...

[bk316]

Meanwhile, the Chinese already have quantum photonic communication between several satellites in orbit.

And what does ROFAR have to do with quantum communication?
And by the way

In the early summer of 2016, researchers from the Russian Quantum Center activated the country's first citywide quantum communication line. A canal was built, the length of which was more than 30 km.

[Aviator_]

there is a quantum photon connection between several satellites

Morse code with the help of a naval ratier? This is what "photon" communication is. Moreover, light is a stream of quanta.

[voyaka uh]

This refers to the connection between pairs of entangled photons.
This is called quantum communication.
Unlike conventional "laser" communication.

[Aviator_]

It's clear. But this is still at the level of an academic task. And about the connection between the satellites - a PR move. To spend more money. Kind of like a controlled thermonuclear.

[And Us Rat]

Quote: voyaka uh

This refers to the connection between pairs of entangled photons.

This is not so, alas.
Unfortunately, human technology is now as far from communication based on the principles of quantum entanglement as it is to a warp drive. 100 years at least.

[Slavianin_37]

Space communication of a new type? Site administration, now my comment is long enough for you?

[And Us Rat]

Quote: Slavianin_37

Site administration, now my comment is long enough for you?

No.

[mark1]

If only it didn’t work out that they developed it with us, but they are implementing and producing it anywhere but not in Russia.

[Amateur]

scientific journal Journal of Optics.

The magazine is based in the UK and has a branch in the US. so-called. "Russian scientists", publishing information in a scientific journal controlled by the enemies of Russia, do not violate anything? Or glory is more expensive than the Motherland?

[alexoff]

Usually, if an article is published in a scientific journal, then its achievements are of little use or are very far from implementation. If it is not far from implementation, then a patent is written without details or with intentional errors, and if everything is already on the ointment, then nothing is written. So in any science for a very long time

[Arpad_Polan]

"Polaritons combine the properties of particles and waves simultaneously. They propagate along the surface of a conductor having a cylindrical field, while rotating in different directions at different speeds." ---- to me this means a wire. A lazer can be polarized and needs no wire to propagate, can also transmit many cnannels at the same frequency. These researchers shroud their inventions in unclear terms to exagerrate their own importance and get grants. Not saying that it is not important to make new physical discoveries but communicating via a wire in the 21st century is nothing to get excited about. Wll maybe, to get ultra high speed wired transmission between devices i suppose....

[Aviator_]

These researchers shroud their inventions in unclear terms to exaggerate their own importance and get grants.

Absolutely agree. Specially powdered brains.

[solar]

based on new principles. With its help, you can transmit several signals at the same frequency at the same time. at a speed close to the speed of light.

In fact, all radio waves, like other types of electromagnetic radiation, propagate at the speed of light.

[grandfather_Kostya]

In fact, all radio waves, like other types of electromagnetic radiation, propagate at the speed of light.

Not always: when it comes to the propagation of a signal at the border of a metal and a dielectric, the speed is always less than the speed of light. By the way, any lens works on the principle of different slowing down of light for different glass thicknesses.

[Elephant]

Published in a European magazine. Was this done so that our secret promising scientific developments would be leaked to the enemies?!

[Derrick Whatesson]

In general, everything is in the possibility of signal modulation, fiber has increased the data transfer rate by an order of magnitude, as far as I understand, the technology mentioned should surpass fiber. Thank you

[cpls22]

It seems to be a wired connection that cannot be intercepted.
Eddy currents along the conductor along its surface are probably much more economical in terms of energy consumption for long distances.
Perhaps this is an attempt to circumvent the patent for quantum communication.
The terminology flows easily from one to the other.

[Aviator_]

Eddy currents along the conductor along its surface -

Are you talking about the skin effect? Well, this high-frequency communication is 100 years old at lunchtime. And the note is blurry. A set of incoherent learned phrases.