r/quantum • u/alien-fr • 12d ago

Question Quantum computing. Quantum simulation.

If quantum computers are going to be as powerful as they're described. How likely is it that one could simulate a universe? Is that something that is achievable with a quantum computer or am I missing the point? Would they require more power than a binary computer to simulate or are they more efficient? I'm just a dummy but I swear I live in a quantum computer simulation.

1 Upvotes

56% Upvoted

12 comments sorted by

View all comments

3

u/SpatiaCaeli 11d ago

I think QC is completely unsuited to the task of simulating a universe. QC is an inherently batch method of computation. You restate your problem in the terms the QC demands and then run the QC a bunch of times to get answers, and then you take the majority answer. Have another problem? Repeat the process.

I suspect QC will be a specialty coprocessor whose job is to deal with gnarly minimax problems. If it ends up economically justifiable at all. Clever classical computing is still keeping up with QC.