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Ion qubits are useless forever
(Fig.1) Just 36 impractical ion qubits are far from practical computers, contrary to hypes.
The 1st, 3rd, 4th, 8th paragraphs of this hyped BBC news (8/13/2025) say
"A new state-of-the-art quantum computer said to be the most advanced in the world has just been switched on." ← blatant fake news = still Not quantum computers.
"Oxford Ionics chief executive.. said that meant they could "solve problems in minutes, we otherwise wouldn't think of solvable at all with a computer" ← fake news, too
"The announcement comes after IonQ, a US-listed quantum company, agreed to acquire Oxford Ionics for $1.1bn" ← A large amount of (taxpayers' or investment) money is wasted on the useless fake quantum computers like fraudulent D-Wave.
"a significant step forward (= still useless ) in making commercially valuable quantum computing a reality"
↑ This Oxford Ionics and IonQ still have only 10 or 36 unstable trapped ion qubits ( this-insider brief, this-abstract ), which are useless, still Not computers at all (= one qubit can take only 0 or 1 values ).
They still fall far short of millions of qubits required for a practical computer ( this-4th-paragraph ) that is impossible to realize forever.
Two energy levels (= ground-state = 0, excited state = 1 ) of each ion unstably trapped by external electromagnetic field is used as a qubit's 0 and 1 state, which ion qubits are unable to scale up to practical level forever ( this or this-summary ).
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