A quantum fan can act as a quantum antenna.

Each spectrum's color can act as the individual state in the qubit. 

A nanowire photon detector or quantum fan can enable quantum communication. And this kind of quantum antenna can play a key role in quantum communication. Almost anything can form the quantum antenna. And in some models things like rainbows can use to detect quantum messages. 

But one thing limits this type of innovation. The idea of that kind of antenna is that when quantum information or qubit interacts with the photons or some other information that travels in the antenna. That causes flash. The thing is that things like different frequencies of electromagnetic radiation in quantum systems can act as the state of the qubit. So each color in the spectrum can act as a qubit's state. And theoretically, the rainbow can act as a quantum antenna. 

The system must determine zero-point and keep it stable. Only zero-point. That determined with enough accuracy, can make quantum communication possible. Zero point is important for the system because it can see changes in energy fields. Another thing that the system must measure is the outcoming disturbances. This is one of the reasons why rainbow cannot use in quantum communication. 

The system must detect the changes in energy levels and outside effects so that it can use the rainbow as the quantum antenna in natural conditions. The rainbow is the spectrum where each color is a certain wavelength of radiation. And each wavelength or frequency in radiation is a certain state of the qubit. 

But changes in radiation's energy level make the use of rainbows as quantum antennas almost impossible. The system should measure the changes in outcoming radiation's energy level. And then subtract those energy levels from the base level. That thing makes it possible to make a hologram that can interact with incoming quantum messages. 

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There are two ways to make quantum systems exchange information.

The first method is to raise the energy level of the particles and make them resonate with the same frequency. Another method is to use two connector particles and use a very low energy level as a medium that transmits information between the systems. 

The problem with quantum communication is simple how to adjust those systems in the same frequency. Above this text is Maurits Escher's painting "Waterfall". And that thing can introduce one of the biggest problems with the quantum system. 

If we want to change information between two towers of that system, we must adjust those towers in the same frequency. And then make the quantum entanglement between those towers. 

Because those towers are part of the same quantum system, there is the possibility to make those crystals resonate and exchange information. But then we can think that the actor that sends information will throw the information from another tower to the next there is the possibility that the information transmitted will miss that receiver tower. 

There would be outcoming energy that destroys the resonation. And that thing makes information go somewhere else it should. 

We always think that information must travel through the system from upward. In that way, system operators would rise the energy level of the quantum participants of the communication. And that thing requires very high accuracy. 

The quantum entanglement and superposition are like a bridge between those towers. In that case, the energy level of those towers will rise to the same level. And then the material or elementary particles will put to resonate with the same frequency. Then the sender side of the superpositioned quantum entanglement will rise to a higher level. 

And that makes the information flow. When the energy level of quantum entanglement rises to the same level, the radiation that the sides of that quantum entanglement will break the entirety by pushing those superpositioned and entangled particles away. That's why the quantum entanglement can stay only a short time. 

The low-energy communication model. 

But there is another way to think about quantum communication. If the system wants to transmit information between those towers it can use four actors in that process. The first actor can drop the information to the second actor. 

That stands at the quantum structure's base floor or base energy level. Then that actor transfer information to the actor that is below the second tower. And the third actor will drop the wire and pull that message or information up to the second or receiving tower. 

Or airflow or energy that is driven behind (or below) that particle. Rises information to the particle at the top of receiving tower. 

There is needed two actors on the ground floor is simple. The system must drive information under the receiving tower. So that's why there needed two actors. And the receiving actor's energy level must be lower. 

This thing is called under-energetic communication. In that version of the communication, the system falls information to the lowest possible energy level. The system drives information to the Bose-Einstein condensate. 

Then that condensate will transfer information to the 2D quasiparticle. And then the laser ray will drive behind that quasiparticle and that makes the information travel from the quasiparticle to the top of the receiving tower to a particle that is waiting for the information. 

The thing that makes this process difficult is the complexity of the system. It's difficult to find the receiving tower in complex systems. Adjusting those systems is very hard. The information transporter must find the right route to the receiving tower. And that is very difficult. The route can be a series of particles that resonate with the same frequency but the energy level turns lower all the time. 

The quantum radar is one of the most powerful tools in the world.

Quantum technology makes it possible to find new targets were to use radars. The radars can use in anti-stealth systems. But in the future, they can use for searching neural electric phenomena. The high accurate. Quantum entanglement-based systems can also use for ultra-secure communication. 

And in some visions, quantum technology allows creating new versions for radiation therapy. That thing makes it possible to superposition to a certain point of tissue. Then the energy will be put to travel through the quantum entanglement. In the wildest visions. 

The superpositioned and entangled particle pairs can use to transmit data even from another solar system. There are many theoretical ways to benefit quantum technology in communication and observation systems. So here I will not write about things like quantum stealth. 

If we would connect photon (or electron) to wave movement that thing acts like weight. It can make the wave movement stretching. And also that thing is making the micro- or radiowaves more accurate than without those weights. 

The entangled microwave photons are making radars 500x more boost than without those entangled photons. The high-accurate quantum radars can search stealth aircraft from the skies. But there is the possibility to use the superpositioned and entangled particles to break the computer codes or steal data even from the microprocessors. 

The most interesting and frightening scenario of the quantum, sensors is that the quantum radars can use to search the electric actions in the human nervous systems. That thing makes it theoretically possible to read the EEG from the other side of the Earth. The quantum entanglement can also use for ultra-secure data transmissions. 

But as you know the quantum radars can use to burn computers and microchips. The quantum entanglement can cut tiny wires in the microprocessors very effectively. Quantum radars can also use to destroy things like computers. The high-power and very accurate radio- or microwave impulse can format the ROM memories of the microchips. And that thing can be the new type of ECM system. 

https://arstechnica.com/science/2022/01/entangled-microwave-photons-may-give-500x-boost-to-radar/

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