Again, as i said, Qauntum computing isnt some new age magic - its main principle is to utilize the uncertainty principle re: electron spin and use spin direction to store data as well. As i said, what this means, is that quantum computer's application is pretty restrictive, its restricted to any application that requires variables to hold many multiple possible values and calculates them at once, instead linearly.
Currently, cryptography/cypher is the main application of the mathematics that is of 'x can be any value between 1 and 1 million, so can y, z, etc and they are plugged into a quadratic to supply value A = x^2+y^2+2xyz. I do not have any of the values of x,y,z, i just need to plug and play till i get answer = A that will match solution'. There may be other applications of it, i am sure and all of them will benefit from quantum computing.
But thats basically it - the nature of quantum computing means that you get massive advantage in any of the calculations where the variables are 'x = 1 to 1 million y = 1 to 1 million, etc'. You dont get an advantage anywhere else.
For eg, i am 99.999% sure, even 100 years from now, playing a video game on a quantum computer wont give any performance metric advantage over playing it on its the-then 100 year future equivalent of npn and pnp junction normie cpus.
In terms of processing a vast amount of singular data, ie, where you are fed variables x,y,z,a,b,c.....to infinity but each variable has only one value, quantum computing offers no advantage over standard flop speed.
Yes, it will be a game changer in terms of game theory, as it would lead to much deeper analysis from cpu of a complex scenario with data being fed to it, but it wont be like what most people think and suddenly make all normie cpu redundant like coal tech got made redundant by oil tech.
I give you even more simple exampl - suppose you are looking for your friend in a playground where a million people are playing, changing their spots randomly…
A digital computer can apply different algorithms start from mid or end of playground etc. but it will take huge amount on time to get to your friend
A quantum computer can basically access all those millions of people playing at once and in an instant find your friend.
But it depends on number of qubits a quantum chip have.
The most practical of qubits which scientists can utilise is basically a superconducting electron which provides three properties
Superposition (can be 0-1)
Entanglement (is linked to all other qubits hence the ease of calculation)
Interference (can negate in-corrections instantly)
(The limiting factor now is superconducting material only works in absolute zero)
And from the post of yours, you are confused regarding practical purposes of quantum chips every problem can be solved using calculations.
Because almost every problem can be converted to a equation and every equation has variables.
Lets take an example of super alloys currently even GTRE has enough data from its own experiments to arrive at a equation where they can with different variables can hypothetically arrive at an superalloy to build a core which can take required pressure and temperature but issue is the calculations only because basically with different variables playing at hand one basically needs to work on n-body problems which current digital computers are in efficient to resolve.
We have equations ready but even the mighty supercomputers will take 100 of years for some problems millions of years to work the calculations.
And same thing can be applied to gaming industry:
What can be n-body problems for game devs:
simulations of any kind physics, lighting, crowd behaviour, combat simulations and yes it directly impacts the game FPS.
Current games leave much to desire they cant simulate any of the above which I mentioned and we already have equations ready basically tons of n-body problems bonaza.
Think of a game 100 years from now where basically one is interacting with almost natural
Environments, natural cosmic simulations, natural human interactions without any other human players available to play also.
Quantum computers will be the biggest jump in modern age which will bring the materialistic human civilisation to its hypothetical peak but before that there is also n-body problems to resolve to actually create quantum computer
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