MORE ON QUANTUM COMPUTING

From Interesting Engineering: "Quantum Breakthrough: World's First 10000-qubit processor achieves 100x scaling leap."

#QuantumComputing

Reality or hype?

A brief additional info:

IBM did not produce much in the last 40+ years. It developed Python software that connects to their quantum computers; I believe it's called PissKit.

Superconducting qubits are well known to be dead. However, this message did not reach IBM, Intel, QuTech, or any other location in Australia or elsewhere.

Semiconducting qubits, those at Intel, Microsoft, and elsewhere, are effectively dead. The people who proposed those ideas do not understand the fundamentals of semiconductors.

It is not much better with other qubit implementations. Qubits tend to be somewhat finicky. This is not entirely accurate. Qubits behave in their own way, and that behavior is not compatible with building useful computers.

If you see something called a quantum computer, and it has those golden wires several feet long, run away. Its designers lack basic design competence. At IBM, one of those modern computers, System One or maybe Two, gave Joe Biden bone cancer.

A modular design for quantum computing, to increase its power, is truly dumb. Quantum states can't be copied from one place to another. Quantum entanglement, which is supposed to address communication between modules, is largely fiction. It certainly does not work over long distances, and even over short distances, it is at best dubious.

Quantum noise can't be removed because it is not possible to change a probabilistic outcome that has already occurred. It is not possible to go back in time and redo something that is inherently quantum. No, it can't be done. Shut up!

Noise generated by a quantum gate is passed to a gate connected to it. Therefore, the noise can only increase; it cannot decrease. Eventually, the noise becomes so high that quantum gates can no longer process useful information.

This does not happen in binary gates. This is why there are chips with almost a trillion gates, and only plans to make a quantum chip with 10000 gates. Typically, quantum computers utilize no more than several hundred gates. Do you see the difference? Now you know why the progress is so slow.

A quantum computer can't be initialized to a reproducible state. That's something I came up with, in case you don't know.

You can run this simple program on a quantum computer to verify.

1) x = 0, which means initialize a qubit, gate, or the whole computer to some initial state of your choice.

2) Determine that state.

3) Repeat steps 1) and 2) a large number of times, perhaps 10000.

4) Plot the distribution of acquired data.

5) The distribution is always going to be wide, meaning the quantum computer can't be truly initialized. If you were to start simulations with random initial variable values, that would be no fun at all. You can't place those values internally into a memory, because that memory is also probabilistic.

For the quantum computer to be functional, the distribution would have to be extremely narrow, such as that produced by a laptop or desktop computer.

A fundamental reason quantum computers fail is that they violate a basic law of quantum mechanics that I discovered. It states that a quantum state of any real quantum system can't be determined. Any quantum system is probabilistic; it generates noise, and that noise is always in a superposition with the wavefunction of that system. The noise is a function of time. It can't be removed. In this case, the Born equation has no solutions. It truly is the end of quantum computing. You can still use quantum computers once they are highly integrated as bookends to keep your books from falling; beyond that, there is not much use for them.

As a closing remark, the probability of any fundamental particle in energy space, be it an electron or a photon, is continuous from zero to infinity. There is some funny stuff going on at the bottom. At the upper limit, infinite energy can't be attained. Those particles' wavefunctions stretch from -∞ to +∞ in all three dimensions. The wavefunction can't start at point A and finish at point B. (It does that in Feynman considerations!) In time, they exist in the positive time direction. The part about time is somewhat shaky because there is no clear definition of time. However, I know I must end this because writing about why quantum computers will never work is a waste of my time.

If you thought of investing in quantum computing company stocks, don't do it. You've been warned!

If you hear from Google CEO Sundar Pichai that their quantum computer, in five minutes, solved a problem that would require a supercomputer more than ten quadrillion years, ignore that. He is talking bullshit.

Do try to prove me wrong. Go ahead.