"Precision control of diamond qubits is an important step in the development of quantum computers. Credit: Ioannis Karapatzakis, KIT" (ScitechDaily, Unlocking Quantum Communication: The Power of Diamond-Based Qubits)
Diamonds are tools that can make new and portable quantum computers possible. The researchers can control a thing called tin vacancy centers, SnV in a diamond. That makes it possible to create static qubits. There is also the possibility to use other impurities like noble gas atoms as qubits. Those atoms can be in precise positions in very clean diamonds. When a laser beam impacts those atoms it affects them as a group.
"Where, for example, laser pulses in a glass fiber transport information from A to B in classical digital communication, quantum mechanics uses individual photons. In principle, this makes it impossible to intercept the transmitted data. Qubits that are optically addressable (can be controlled or read out with light) are suitable for storing the photons’ information and processing it in quantum computers. The qubits can store and process quantum states, and absorb and emit them in the form of photons." (ScitechDaily, Unlocking Quantum Communication: The Power of Diamond-Based Qubits)
The big difference between quantum and classical laser communication is that in quantum communication information is stored in particles. Normally those particles are photons. The quantum data transportation base is in the photon's superposition. When data is stored in photons using a certain energy level or state, that thing means when the receiver wants to read that data, the receiver must know the state, where the data is stored. When the receiver reads data, it will transported to the receiver, and the empty state is left. So, if somebody steals data from qubit receiver sees that thing. The number of qubit states is important because that makes qubit more secure.
Phononic qubits can be the new tool for quantum computing.
The idea for quantum computers is a diamond-based technology. The diamonds and electrons in them can make classical qubits. But, there is a possibility that researchers can use diamonds as phononic qubits. The phononic qubit means that the system can use sound lasers to make oscillate atoms in the sound amplification by stimulated emission of radiation, SASER beam. This is the thing that makes the thing, called tractor beam useful for that kind of system.
The idea is that the nano-diamond pair hangs in an acoustic tractor beam or acoustic tweezers between two diamonds. Then those diamonds send the phonon or acoustic laser beam that makes those diamonds oscillate. And that system makes the acoustic qubits possible. Of course, it's possible to make the acoustic qubits between two cone-shaped diamonds. But that thing is quite difficult to create. The idea in the acoustic qubits is that they create the acoustic pressure field around some monoatomic object. Then system can put those standing waves into superposition.
https://scitechdaily.com/unlocking-quantum-communication-the-power-of-diamond-based-qubits/
https://en.wikipedia.org/wiki/Quantum_computing
https://en.wikipedia.org/wiki/Qubit
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