"Photonic space-time crystals are advanced materials designed to enhance the performance and efficiency of technologies like wireless communication and lasers. These crystals have a unique structure that is periodically arranged in three spatial dimensions and also changes over time, allowing precise control of light’s behavior. Researchers from the Karlsruhe Institute of Technology (KIT), in collaboration with Aalto University, the University of Eastern Finland, and Harbin Engineering University in China, have demonstrated how these four-dimensional materials can be applied in real-world technologies. Their findings were published in Nature Photonics." (ScitechDaily, Unlocking the 4th Dimension: Space-Time Crystals Unleash New Power Over Light)
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"Photonic time crystals are materials with a consistent structure in space but properties that change periodically over time. This time-based variation allows light’s spectral composition to be modulated and amplified, making them valuable for optical information processing." (ScitechDaily, Unlocking the 4th Dimension: Space-Time Crystals Unleash New Power Over Light)
“This gives us new degrees of freedom but also poses a lot of challenges,” explained Professor Carsten Rockstuhl from KIT’s Institute for Theoretical Solid-State Physics and Institute of Nanotechnology. “This study paves the way for using these materials in information processing systems capable of using and amplifying light of any frequency.” (ScitechDaily, Unlocking the 4th Dimension: Space-Time Crystals Unleash New Power Over Light)
The researchers say that...
“We’re very excited about this breakthrough in photonic materials, and we look forward to seeing the long-term impact of our research. Now the enormous potential of modern optical materials research can be realized,” Rockstuhl said. “The idea isn’t limited to optics and photonics; it can be applied to various physical systems and has the potential to inspire new research in other fields.” (ScitechDaily, Unlocking the 4th Dimension: Space-Time Crystals Unleash New Power Over Light)
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When researchers make things like 4-dimensional materials we must make a system. There some actors are in the 4th dimension and others are in the 3rd dimension. The system can involve quantum crystals their spinning parts can have different spinning speeds. The internal structures of the crystals can have different energy levels and the common quantum field around that entirety can reflect that energy back to its internal structure.
The material can have electrons trapped inside the quantum ball. Then it pumps energy inside them that makes multiple quantum fields around them. Then the difference between energy levels in those fields allows those electrons to be at 3rd and 4th dimensions at the same time. Those fields can trap photons between them. Or they can use the light's wave features to create a structure that can exist in the 3rd and 4th dimensions at the same time.
The fourth dimension is the energy level. Where the material loses its ability to interact with 3D material. And the universe where we live. The 4D materials can make many things that we cannot even imagine That material is like the antenna that brings energy from the 4th dimension and 3rd dimension.
Before quantum mechanics, researchers thought that material lost the ability to interact or exchange information between the 4th and 3rd dimensions. Until researchers noticed that the material can have two or even more energy levels.
Then researchers noticed that the things called superposition make it possible for the material can have multiple energy states. The superposition can be possible. Between two elementary particles. Or the elementary particle can have multiple quantum fields around it. That means the same particle can have multiple energy states. Those energy fields or energy cores can act as stairs that can make it possible for the energy bottom in the material can interact with the energy top.
The idea in dimensions and energy levels is that the system can have a very high energy top. The energy top is the roof of the system. The system is like a room. And the energy bottom is like the floor. If we want to create a structure that interacts with the spacetime that is over the roof. We can try to make that interaction using two methods.
We can try to jump to the roof and then push something through that layer. Or we can build stairs and use them to go to the roof. Those stairs can be a series of particles. That are in different energy levels. Or they can be the quantum fields in which energy levels are different.
The model of the fourth-dimensional materials is quite a simple thing. The idea is that the material is like a mountain or hill. The hilltop of that material is in the fourth dimension. The problem is that the four-dimensional materials must have lower energy parts or areas that can interact with 3D systems. So if we say that the particle is like a stick that other end is in fire and the other is in ice that means the energy flows through that stick.
In particle accelerators, researchers have seen that the particles like electrons get the nose when they are close to the speed of light. Then quantum fields jump out from that particle. And then that denies the particle to cross the speed of light. When some particle makes a "hole" between dimensions. That means the energy starts to flow through that hole to the third dimension.
The fourth dimension is the energy level and when a particle closes the speed of light that is the border between the 4th and 3rd dimensions the form of nose cases situation that the part of the particle is in the 4th and the rest of it is in the 3rd dimension. The situation is like when we try to move some object between two tanks.
The first tank is at a very low pressure. The second tank's involvement is in the very high pressure. And there is a tube between those tanks. If we try to push an object against the higher pressure flow. We are in trouble. The high-pressure material like water pushes the object back.
When we think about dimensions the 3rd and 4th dimensions are like those two tanks. Energy levels in dimensions act like pressure in the molecular world. When the energy level in a particle rises high enough, the particle starts to conduct energy through it into the 3rd dimension. That energy makes the energy vacuum behind it. That thing pulls the particle back. The energy level that rises in the nose of the particle acts similar way.
As I wrote before the 4th dimension is the energy level or energy space where the energy level is too high that the material can interact with 3d material. Or it can be the energy level in the material. So the 4th dimension can be the energy level in the energy field that closes particles inside it. In some models, the 4th dimension leaks, and that energy is the thing that we know as dark energy.
When some electromagnetic radiation pulls energy to a particle. Its size turns smaller. Then the energy starts to travel away from the particle. That thing acts like the vaporizing water that binds energy into it. The black hole vaporization binds energy fields into it. That thing can explain the gravity.
https://scitechdaily.com/unlocking-the-4th-dimension-space-time-crystals-unleash-new-power-over-light/
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