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Introduction to Quantum Computing
June 21st 2021 @ 7:30 pm – 9:00 pm
Matija Pretnar, University of Ljubljana
We often read in the media that quantum computers are fast because quantum superposition allows them to be in multiple states at once, enabling them to explore all the possible solutions in a single step.
As we shall see, things are not that simple because, in the end, we can observe only one randomly chosen result, which is likely not going to be the one we need. After all, with all the possible solutions out there, what’s the guarantee that the one we want is the one randomly chosen by the quantum computer? So we want to be able to increase the probability of getting the solution we want from among all the possible paths.
What can be done is to use interference to cancel out all the undesirable paths and unwanted solutions. Although we still end up with a randomly chosen path, it is a path chosen from among the ones we want.
This event will be held at Saint Patrick’s Irish Club, with Matija presenting to us via Zoom. A Zoom link will be sent out the Sunday before for those of you who would prefer to join remotely.
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