Above: Moiré excitons in a twisted WSe2/MoSe2
The quantum valley Hall effect with Moiré excitons can be the key element in the next-generation quantum computers. The Hall effect or resistance makes things like radio transmitters possible. When electricity travels in the wire. It creates standing waves between atoms. Those standing waves act like Tesla coils and send radio waves around them. The quantum valley- or quantum Hall effect is the quantum-level form of that effect. In quantum computers, the system can make superposition and entanglement between those fields.
It's possible to make quantum materials where the molecule or electron chain lies on the layer. And then the side coming effect from the standing waves between those atoms, or electrons in the electron chain. Then the system inputs data to those standing waves. The use of an electron chain requires that things like a laser or maser beam can freeze those electrons in the chain.
"The Hall effect is the production of a potential difference (the Hall voltage) across an electrical conductor that is transverse to an electric current in the conductor and to an applied magnetic field perpendicular to the current. It was discovered by Edwin Hall in 1879." (Wikipedia, Hall effect)
The thing that can help to make data transmission and multi-state quantum computers possible is the Moiré exciton. The exciton is the situation. There an electron starts to orbit a positive hole in the layer. The positive hole makes it possible for the system to aim electricity into that hole. The electron can make superposition and entanglement between itself and that hole.
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In diagram A, the flat conductor possesses a negative charge on the top (symbolized by the blue color) and a positive charge on the bottom (red color). In B and C, the direction of the electrical and the magnetic fields are changed respectively which switches the polarity of the charges around. In D, both fields change direction simultaneously which results in the same polarity as in diagram A.
1) electrons
2) flat conductor, which serves as a hall element (hall effect sensor)
3) magnet
4) magnetic field
5) power source
Diagram and text: (Wikipedia, Hall effect)
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The reason why the quantum computer requires quantum entanglement is it can turn the Hall effect. Information, that travels between superpositioned and entangled particles doesn't face the Hall effect. The Hall effect disturbs information in the regular wires. The problem is that data transportation in the superposition and entanglement requires that the transmitting side of the quantum entanglement is at a higher level than the receiving side. In quantum computers, the system can replace particles with two identical electromagnetic fields.
The exciton can be used to keep electron chains in their order. If the alternate electron is at a lower energy level, that helps to keep the chain in its form. In the same way, if the other side of the electron chain is at a lower energy level that thing can make it possible to create a multi-state superposition. But if electrons are at the same energy level, that forms a standing wave between them. And the quantum Hall effect destroys it.
In some cases is possible to create exciton between two layers. The exciton is a next-generation tool to handle electricity and data transmissions in quantum systems. The positive holes at the lower layer can transport the electric fields into the lower layer. That denies the radio echoes from the upper layer. And that means that the system can create static conditions over the layer. That thing can be a new tool for things like quantum interactions and stealth materials.
https://pubs.acs.org/doi/10.1021/acsnano.2c06813
https://scitechdaily.com/how-tiny-quantum-twists-could-power-tomorrows-tech/
https://scitechdaily.com/tiny-titans-of-tech-how-moire-excitons-are-advancing-quantum-computing/
https://en.wikipedia.org/wiki/Exciton
https://en.wikipedia.org/wiki/Hall_effect
https://en.wikipedia.org/wiki/Quantum_Hall_effect
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