Quantum virtual machines are just classical computers

Home page
Quantum computer is useless

(Fig.1)  Quantum virtual machines are just classical (= non-quantum ) computers

Overhyped quantum cloud service or virtual machines are just classical computers instead of useless quantum computers.

The 2nd, 2nd-last paragraphs of this hyped news (8/8/2025) say
"Dubbed "HyperQ," the new system is a type of virtualization technology that balances workloads by dividing a quantum computer's physical hardware (= fake news ) into multiple isolated quantum virtual machines (qVMs = not real quantum computers ) "

"The team tested its HyperQ software (= classical computer ) layer on IBM's Brisbane quantum computer, a 127-qubit gate-based system"

p.2-right-2nd-paragraph says "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.

Quantum computers still lack memory.

p.3-left-last-paragraph of the same paper says "Since quantum computer hardware does not yet have quantum memory (QRAM)"  ← today's quantum computers are useless, lacking memories = still Not computers.

Just using less than 27 qubits (= one qubit can take 0 or 1 value ) is still Not a quantum computer.

p.11-right-1st-paragraph of the same paper says "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 computer simulator easily outperformed the error-prone quantum computers (= still Not computers ), so No quantum advantage.

p.13-right-last-paragraph~p.14-left of the same paper says
"the ideal probability distribution on a classically-simulated ideal quantum computer."  ← classical computers called "ideal (= illusory noiseless ) quantum computers" were used.

"p-ideal(s) is the probability of result s in the ideal (= errorless classical computer ) distribution, and p-real(s) is the probability of result s 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, which is difference in results between the errorless ideal quantum computer (= classical computer ) and the noisy (= error-prone ) quantum computer with very small number of qubits ( this-p.14-(1) ).

↑ When this L1 = 0 (= which never happens ), the quantum computer is errorless like a classical (= ideal quantum ) computer, but all results are L1 > 0, meaning quantum computers always gave wrong erroneous answers.

Classical computer is superior to error-prone quantum computer that is still Not a computer

↑ So this research used only very small numbers of qubits less than only 27 qubits lacking quantum memory (= so still Not a quantum computer ) which gave error-prone wrong answers compared to the exact ideal quantum (= classical ) computer = No quantum advantage.

Feel free to link to this site.