Quantum virtual machines are fake.

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Quantum computer is useless

Quantum computers with only less than 27 useless qubits (= one qubit takes only 0 or 1 value ) are still Not computers.

(Fig.1)  Quantum computers are error-prone, useless, inferior to classical computers.

No real quantum computers.

Quantum computers with too small numbers of qubits and a lot of errors are still Not computers.

This or this news (2025) ↓

2nd-paragraph says  -- Hyped quantum computer
"Dubbed "HyperQ," the new system is a type of virtualization technology that balances workloads by dividing a quantum computer's physical hardware into multiple isolated quantum virtual machines (qVMs = Not real quantum computers ) "

2nd-last-paragraph says  -- Useless quantum computer
"The team tested its HyperQ software (= classical computer ) layer on IBM's Brisbane quantum computer, a 127-qubit (= far from the practical millions of qubits ) gate-based system"

Quantum computers are useless, too error-prone.

p.2-right-2nd-paragraph says  -- Error-prone quantum
"Programs can only utilize a small number of qubits because as the number of qubits used increases,.. leading to propagation errors due to hardware noise and loss of fidelity"  ← today's quantum computers are too error-prone to be practical.

Still No quantum computers

This research used just less than 27 qubits (= one qubit can take 0 or 1 value ), which are still Not quantum computers.

p.11-right-1st-paragraph of the same paper says  -- No quantum computer
"The number of qubits in each circuit ranges from 2 to 10 in the small category, and 11 to 27 in the medium category"  ← Using only less than 27 qubits (= one qubit takes only 0 or 1 value ) means still Not a quantum computer, contrary to the above hyped news.

Classical computers outperform quantum computers.

Classical computers (= ideal quantum computer ) gave exact answers, while error-prone real quantum computers always gave wrong answers.

p.13-right-last-paragraph of the same paper says  -- Classical ideal simulator
"the ideal probability distribution on a classically-simulated ideal quantum computer."  ← classical computers called "ideal (= illusory noiseless or errorless ) quantum computers ( this-p.5-right-last-paragraph )" were used.

p.14-lest-upper says  -- Error-prone quantum computer
"p-ideal(s) is the probability of results in the ideal (= errorless classical computer ) distribution, and p-real(s) is the probability of results in the real (= error-prone quantum computer ) result. The value of L1 (= difference in results between errorless classical computers called ideal quantum computers and the error-prone real quantum computers ) ranges from 0 to 2. L1 = 2 means the result is completely corrupted by noise, while L1 = 1 means the result has more than half of the perfect result"

p.14-Figure 10 shows L1 > 0, which means real quantum computers with less than 27 qubits always gave wrong results different from errorless classical computers called "ideal quantum computers" ( this-p.14-(1) ).

↑ Quantum computers are error-prone, useless

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