Quantum physics determine how to control two light sources rather than one.

Why handling two quantum light sources is important in quantum systems? And especially in quantum data-handling systems. That allows sending identical dataflows in two data handling (or computing) lines. By using this technology is possible. To create expanding quantum information network. The only limit to that thing is the power of the information or energy waste in the system. 

When a light beam or information reaches some quantum unit in the quantum system. That unit absorbs a small part of the energy. So the system needs outcoming energy stimulation for growth. 

The idea is that at the end of each line is the quantum "hill" that doubles the information lines. And that makes it possible to create a theoretically endless number of quantum data lines. The thing requires that each data handling line has a system that brings outcoming radiation emission in the quantum light beam. That helps to replace missing energy that denies the system expansion. 

On the right side of the quantum "hill" is a superpositioned and entangled particle pair. That superpositioned particle-pair can send information back to the quantum "hill".  The thing in this kind of system is that it can use as the quantum router. 

The image above this text shows how an energy beam comes upward of a quantum point. That quantum point doubles the energy beam or light source. When the light impulse hits that quantum "hill". It sends energy beams or light beams to both sides. The asymmetry of that structure determines where information travels. 

The "quantum hill" can use to transmit information in two lines in the quantum computer. That thing makes it possible. That two quantum computers can handle identical information flow. 

And it helps to find errors in calculations. If results in both lines are not identical, there is an error. But if the results are identical there are probably no errors. This is one model for a functional quantum system. 

https://phys.org/news/2023-01-quantum-physicists-sources.html

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Researchers made two entangled light beams. And that is a breakthrough in long-term and long-distance quantum communication.

 

"Researchers using an optical parametric oscillator light source succeeded in producing two entangled light beams. (Artist’s concept.)" (ScitechDaily.com/ Quantum Breakthrough: Light Source Produces Two Entangled Light Beams)

One of the reasons why quantum computers are under development is that they are hard to jam. Regular binary computers use the binary system. The binary system's model is the 2D data structure. Data, that is stored in mass memory. Forms of data allocation units. Those data allocation units can be bits or bytes etc...  (Bit or Byte is the size of the data allocation unit)

The problem with 2D data structure is this.  If two programs or event handlers (or data handlers)  try to touch the same unit this thing causes that system will jam. The event handlers cannot copy information from the same point to two different places. The problem is that in 2D data structure is that the data allocation units cannot go over each other. 

In quantum systems, data allocation units can go over one another. A qubit-form data allocation unit forms a 3D structure like a tower. So if two event handlers need to use the same data allocation unit. At the same time, they can touch the qubit from the data allocation unit in different places. In quantum systems, the qubit's layers or states' order is not as important as it's in 2D systems. If each state involves information that was its place in the qubit. The system knows how to remake the qubit. 

If we want to send information by using quantum networks we have one small problem. We must confirm the message that the receiver gets involving the same information, that the sender packed in the message. If something misses the sender must send the information again. The best way is to send the same message by using two routes. In that version, the system compares the information, that travels in both lines. 

The system can reduce the number of data units between those lines. And if the checksum is zero, that means data that travels in those data lines is identical. That thing requires the ability to make two identical superpositioned and entangled light or some other electromagnetic beams. If we think that we want to send information from point A to point B. And use this kind of technology. 

We must be sure that information doesn't travel through the same disturbance. If information travels through the same disturbance that can cause an identical error in the information package. So the system must send information back to the sender. And that verifies if the involvement of the information package is not changed. 

When researchers create more advanced and effective security methods. Those works have two purposes. 

1) Secure involvement of information package against eavesdroppers. 

2) Secure involvement of the information package against changes. 

The second purpose of security means. The information that the receiver gets identifies what the sender sends. So protecting the involvement of the information package is the prime purpose of security. 

Security is needed in long- and short-distance communication. The system must protect data when it travels in the system or between systems. The vulnerability can be fatal in the microchip's internal communication and communication between two systems. 

If the speed of systems is extremely high even short-term artifact effects cause very bad damage to the data packages. In mathematical calculations, even a small error causes wrong results. And in mathematics is only right and wrong answers. 

https://scitechdaily.com/quantum-breakthrough-light-source-produces-two-entangled-light-beams/

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