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Quantum computer is useless
(Fig.1) Quantum computers are error-prone, useless forever.
The 3rd paragraph of this overhyped fake news on Airbus and Psiquantum (2026) says
"A new methodology combines preparation techniques with computation on fault-tolerant quantum computers,.... the work demonstrates a “bounded quantum advantage” for nonlinear fluid dynamics," ← fake news.
This-Insider brief on the same news says --Unrealized quantum computer
"The work supports Airbus's QuLAB project and reflects broader efforts to prepare aerospace firms for future fault-tolerant quantum computers (= "future" means still-unrealized quantum computers )."
↑ This research paper on Airbus (= this-2nd-paragraph-link ) ↓
p.1-Abstract-middle says -- Classical computer used
"Moreover, to support our theoretical analysis, we provide a classical
numerical study" ← This research uses only an ordinary classical computer.
p.2-1st-paragraph says -- Future imaginary quantum computer
"today's hardware remains noisy (= error-prone quantum computers ), so most proposals target future,
fault-tolerant machines (= still-unrealized future quantum computers )"
p.21-1st-paragraph says -- Just classical, No quantum
"it would be of interest to extend classical simulations.... foundation for
future studies at the interface of quantum computing (= "future" means "still-unrealized quantum computers ")"
↑ So this research used only a classical computer to simulate some quantum algorithm (= Not quantum computers ) in fluid dynamics.
This-5~6th-paragraphs (2026) say -- Error-prone quantum computer
"However, quantum systems are prone to errors, because qubits are very sensitive to noise like vibrations and temperature changes. No company has yet built a large-scale, fault-tolerant quantum computer,"
↑ Quantum computers are useless, too error-prone to give right answers, so No advantage nor fault-tolerant, contrary to hypes.
The 1st-paragraph of another Airbus overhyped fake news with fraudulent IonQ (= Oxford Ionics ) says
"While traditional supercomputers can take months to process aerodynamic simulations, quantum systems promise to complete these calculations in hours, potentially (= still unrealized ) transforming how aircraft manufacturers approach design and testing."
↑ This research paper (2025) ↓
p.10-left says -- Error-prone quantum computer
"The probability of the optimal solution
from the full hybrid optimization experiment on
the Forte QPU (= IonQ's quantum computer ) is lower than the ideal simulator (= classical computer )
or the inference" experiment due to a combination of shot noise and QPU noise"
p.10-Fig.11-(b) shows -- Classical computer better
Probability of obtaining the best optimization solutions by IonQ's just 28 ion qubits (= one qubit takes only 0 or 1 value, so still Not a quantum computer ) called Forte QPU is worse than (ideal classical computer's) simulator ( this-p.9-right-IV.1.1 ).
↑ So Airbus used IonQ's just 28 error-prone ion qubits (= each trapped ion's two energy levels are used as a qubit's 0 or 1 state ) in a hybrid computer (= almost a classical computer ) for only a tiny, tiny part of fluid-dynamics simulation, and an errorless classical computer (= ideal simulator ) obtained more accurate results than the error-prone quantum computer's qubits.
↑ As a result, "quantum computers will simulate something faster than classical computers !" is completely overhyped fake news.
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