RE: Have You Ever Seen or Heard a Quantum Computer!
Yeah sure it will in few years..
As a computer student, i can relate and break it down a bit.
You know that game where you say "think of a number", then have the person do a series of arithmetic operations with that number, and you can guess the end result even though you didn't know their original number? Quantum computing is a bit like that, except you have a roomful of people thinking of all possible numbers up to 2^n, where n is the number of randomised qubits you start with. If you think of quantum mechanics in terms of "many universes", each of those 2^n numbers is encoded by the binary arrangement of the bits in a separate universe.
How is that useful? Because unlike people in normal "multiple universes", you can use quantum interference to get them to "talk to each other" and notice repeating patterns among each other's answers. In particular, just as the regular discrete Fourier transform can give you the dominant temporal frequency (or equivalently, wavelength) of a time series of data, the quantum FFT can give you the "universe wavelength"[*] of a quantum-superposed set of answers; that is, "how many universes sideways would you have to go to find someone with the same answer". Let me stop here. It feels good to have an idea of what you talk about @hilarski.
I agree with you @georgechuks.
Quantum computing has the potential to revolutionise how we use data and power machines, but what is it? It differs to classical computing in one fundamental way – the way information is stored. It makes the most of a strange property of quantum mechanics, called superposition. It means one ‘unit’ can hold much more information than the equivalent in classical computing. Nice on @ hilarski
on the otherside we 'll experience potential threats on all of our sorts of security t's all depend that no one have a quatum computer I'd encourage you to know more about prime factorization and shor's algorithm.
if anyone could make it he could break any system within a second all sorts of current cryptography would be useless
It might finally enable weather forecasts to be accurate more than a few days out as well. It will be interesting to know precisely where hurricanes will make landfall, instead of the spaghetti models that we have now which are better than nothing, but still leave a lot to be desired. I think quantum computers will be like GPS in the sense that governments will have the cutting edge capabilities before civilians. You could make unbreakable (with classical computers) and tamper-evident transmissions which will be of interest to militaries. Encryption like we have now with SHA-256 could be compromised, and would destroy coins that use this technology (like Bitcoin) unless some serious changes are implemented. It's all pretty fascinating though, and the connection between mathematics, computer science, and physics is kind of inspiring in a way.
Very cool!
Well its writing on wonderful article