Showing posts with label photonics. Show all posts
Showing posts with label photonics. Show all posts

Monday, July 13, 2026

The model of Hawking radiation. And black hole evaporation.

 

A quasar emits exceptional amounts of energy generated by matter falling into a supermassive black hole. Credit: NASA, ESA, and J. Olmsted (STScI). Thirty-one newly discovered ancient quasars are giving scientists their clearest view yet of the universe’s earliest giant black holes.” (ScitechDaily, The Universe Was Barely Born When These Giant Black Holes Appeared)

The universe. It was just born. When the giant black holes formed. 

The model of Hawking radiation. And black hole evaporation. Hawking radiation. It forms in black hole evaporation. One of the reasons why. A black hole. It is. so powerful. It Is that. A black hole is spinning. Its spin binds energy from around it. That makes a black hole act like a cold object. The singularity inside the black hole acts like a thermal pump. It binds energy as long as the material disk’s energy level is higher. Than. The singularity can bind. The energy level determines. 

The existence of the singularity. Energy that comes from outside. It presses electrons and quarks. Into one entity.  If that energy vanishes. That singularity starts to erupt. In a singularity, all particles that form atoms are under one quantum field. They turn into one entirety. A super particle. All elementary particles form one homogeneous particle. There are no internal structures in that matter. And that causes its form as a black hole. 

When the spinning speed accelerates. A black hole pulls and binds energy. And then the speed of the black hole’s spin slows. A black hole reabsorbs its energy. This means that the black hole’s shell sends an energy impulse against that spiral form. That breaks harmony. And it forms. The entropy in the system inside the event horizon. When a black hole’s spin accelerates, it binds energy. Energy travels in the black hole’s singularity. 

By following a nice-looking spiral trajectory. The lack of entropy means that there is no reflection. In reflection, a photon transfers energy into the particle’s quantum field. And then that quantum field sends an energy impulse. If something pulls energy out from the quantum field from another side. That thing forms a situation. Where there is no reflection. Reflection can also happen through the whirl. The particle pulls energy into the whirl. Then that whirl kicks energy back to the particle. And pushes it back. In the same way, we will jump on a trampoline. The jumper moves energy to the trampoline. And then the energy reflection pushes the jumper back. The reason why we cannot run on the water is that. We cannot move enough energy fast enough to liquid. Water molecules transport energy out from that point. 

In the same way. Superdegenenerated material in the singularity transports energy out from the impact point. The singularity is surrounded by the energy field. That pushes it into its form. The energy can travel to that material as long as. Its spin speed turns faster. When a black hole spins. Its whirl turns larger. And the whirl pushes energy into the black hole’s singularity. The whirl and singularity. They are in interaction. The whirl denies the singularity to release its energy. And when that whirl vanishes. Nothing can keep a black hole in its form. 


Nothing can escape inside the event horizon. But there is a possibility that something can steal energy. From the point of the event horizon. This is possible without breaking the laws of nature. The speed of light depends on the density of matter. This means that light travels more slowly in the black hole’s material disk than outside it. We could see that difference. Only if we stand out from the space. When the material disk escapes from the event horizon. That thing causes a situation where there is a hole. The speed of light is faster than the speed of light. It is outside that point. If some kind of string or particle falls into the event horizon. And that material disk jumps away from that point. 

The quantum field or string. It can conduct energy out from that point. When a material disk jumps out from the event horizon. That causes the effect. That event horizon falls in. This ditch in the event horizon forms because the speed of light changes at that point. Things that affect the speed of light. They are the density of matter and radiation. This is why the speed of light is slower in the atmosphere. Than. It is in the vacuum. And this means. The speed of light is slower in the black hole’s material disk. Than outside it. The speed of light is the speed of a photon. That speed is always top. But the speed of a photon depends on the environment. 

The universe was very young. When the giant black holes formed. The reason for the ultimate size of those old black holes was the density of the young universe.  The young universe was denser. And those black holes pulled more matter and energy inside them than black holes pull in the modern universe. The resistance or pressure from surrounding matter and quantum fields pressed those black holes into their form. Then the universe’s expansion. It decreased the counter pressure. And that let those black holes expand. That is a very simplified explanation. Another reason for this. That expansion happens due to entropy. The speed of light in the young universe was different. 

The entropy in the young universe was higher. This means that. The difference in entropy between the black hole’s halo, material disk, and its environment. It was higher. But in the black hole’s material disk, that entropy is always lower than around it. That causes the pull of that massive object. Inside the black hole. There is no entropy at all. And that causes an effect. That nothing can escape from it. When material escapes from a gravitational field. The field loads energy into that particle. Then the particle requires something. That makes it turn back. Entropy: the disorder in the system. It forms a whirl. 


And then the particle. It can push against that whirl. If that whirl doesn’t form. There is nothing that the particle can push against. And that thing causes the fall of the matter. One of the ways. That can cause an object like a photon to escape is that the photon pushes against other photons. That is trapped at the point. Of the event horizon. When the photon sends an energy impulse to another photon or particle that is trapped at that point. That lower photon transfers its energy to that higher photon. And that means the energy is stolen from the black hole. 

The interaction between the black hole and its environment goes like this: If the black hole’s evaporation is so strong. That falling matter cannot replace lost mass and energy. The black hole shrinks. And if it gets more energy and matter. Than. It loses in its evaporation. The black hole expands. The evaporation. It is the reason for the Hawking radiation. There are a couple of things. That can cause the black hole to lose a photon or energy. 

One is a very low-energy photon. That photon can steal energy from a black hole. The idea is that. This kind of photon can act like icy water. When its energy level is lower than a black hole’s, photons. That lower-energy photon. It just binds energy from the black hole. Into it. When that happens, a black hole loses a little bit of its mass. The surface area of the black hole. It determines the evaporation speed. The small black hole. It has a larger surface area. Relation. To its volume than a large black hole. That means. Smaller black hole evaporation. It is stronger than the larger ones. The escape velocity at the point of the event horizon. It is always the speed of light. But the environment determines the speed of light. If the environment is dense. The speed of light is lower. Than. If the black hole is in a low-density region. 

Another version of that model is the photon. It starts to orbit the black hole. Just at the point of the event horizon. That point is not as stable as we might think. And the waves of that point can cause a situation. That photon will escape from the point of the event horizon. The photon escapes because the event horizon escapes. And leaves the photon outside it. There is also a possibility that the photon focuses energy. In the middle of it. If a photon gets all its energy from the event horizon. It can form a quantum dot. That can drive energy out. From the point of the event horizon. The whirl that forms just at the point of the event horizon. It can push energy to other particles. 

The third version is that the black hole can form a so-called parasite black hole. In its material disk or halo. This so-called “parasite” black hole can exist for a very short time. But it can steal photons from the black hole’s event horizon. The idea is that. Another black hole takes a photon out from the point of the event horizon. And if that photon travels past the other black hole. The energy that the black hole pumped into that photon is lost forever.



https://scitechdaily.com/the-universe-was-barely-born-when-these-giant-black-holes-appeared/



https://en.wikipedia.org/wiki/Hawking_radiation


Tuesday, August 19, 2025

Researchers split a photon into two pieces.

  Researchers split a photon into two pieces. 



"By splitting a single photon, scientists confirmed that angular momentum is always conserved — a billion-to-one experiment that reinforces the foundations of quantum physics. Credit: SciTechDaily.com" (ScitechDaily, Scientists Just Split a Single Photon. Here’s What They Found)

The image above introduces a situation. The wave movement impacts a photon. That thing makes the photon oscillate and send a wave movement. That thing can also split a photon into two pieces. When a photon travels in a quantum network. Transporting information. The system must store information about that photon. 

And after that, the system must also download information from that photon. The very thin wave bites could act like the needle of the gramophone. The system scans the depth of the waves that are on the photon’s surface. The quantum system stores information in those waves. And the number of waves determines how many states the qubit can have. Another determinant is the depth of those waves. 

Researchers at the University of Tampere split a photon into two photons. That thing proved that even photons follow one of the basic rules in physics: the conservation of angular momentum. So, if the system can make photons act like a gyroscope. And keep those photons in the same position, which makes a new advance in photonics and quantum computing. A series of superpositioned and entangled photons can transport information in nanotube-based systems. 


"Schematic of a single photon with zero angular momentum (green) splitting into two photons (red) with either zero or opposite angular momenta (sketched through the spatially varying color), which adds up to zero confirming the fundamental angular momentum conservation law. Credit: Robert Fickler / Tampere University"(ScitechDaily, Scientists Just Split a Single Photon. Here’s What They Found)



Splitting a photon into two photons by aiming a laser beam, or a wave movement through it. It is one of the things that can make quantum networks closer to reality. In a quantum network, information is stored in particles, like photons.  In a quantum network, particles travel and transport information. In a regular network, wave movement acts as an information transporter. 

The problem with the quantum network is this. Those particles that travel in that network. Should not touch anything unexpected. Any field or unexpected error in the quantum network causes a situation. There is information that particle transport can be damaged. The problem with error detection is this. The system cannot detect errors that happen in some quantum line. 

The answer for error detection is to send information using two separate lines. If those lines create identical solutions, the answer is ” probably closer, right than wrong”. In reasonable circuits. The system makes all calculations backward. And if the answer is the original values, the system gives the right answer. But if the system transports information into two lines, it must split that thing into two routes. 

In a quantum network. That requires that the system must create two identical information packs. So, the ability to split photons can be a tool for quantum routers. But the system can use this technology in quantum computers. Splitting photons and putting them into superposition and quantum entanglement is one thing that can make the quantum chips closer to everyday reality. The information that photon also follows the principle of angular momentum is the thing. That can be important for quantum technology. If the system knows when photons “fall” in quantum entanglement, that can improve the quantum system's effectiveness. 


https://scitechdaily.com/scientists-just-split-a-single-photon-heres-what-they-found/


https://en.wikipedia.org/wiki/Angular_momentum

The model of Hawking radiation. And black hole evaporation.

  A quasar emits exceptional amounts of energy generated by matter falling into a supermassive black hole. Credit: NASA, ESA, and J. Olmsted...