This is part of a series on quantum error correction. For other parts, check out the link at the bottom. Last time we saw how the toric code protects against bit flip errors. These errors that change the values of the qubits in the grid, flipping them from 0 to…

This is the seventh post in a series on quantum error correction. For other parts, check out the link at the bottom. The Toric Code so far We have a bunch of qubits, which we call physical qubits. These are too noisy to do anything useful. To make a useful qubit, which we call a…

This is the sixth post in a series on quantum error correction. For other parts, check out the link at the bottom. Last time we introduced the toric code, which is a way of making many noisy qubits (which we called physical qubits) into one with hardly any noise at…

This is the fifth post in a series on quantum error correction. For other parts, check out the link at the bottom. We want to build a quantum computer. For that we need quantum bits or qubits. The ones we can build will always be too noisy to be used…

This is the fourth post in a series on quantum error correction. For other parts, check out the link at the bottom. In the next set of posts we will be moving on to the promised land: we will start looking at surface codes. These were everyone’s favourite codes back…

This is the third post in a series on quantum error correction. For other parts, check out the link at the bottom. We have some information. We want to store it for a long time without it getting messed up. As we saw in the first part, that’s not problem. 1. What is Quantum Error Correction? 5 years ago I had ran a citizen science project based on quantum computing. More specifically it was based on quantum…decodoku.medium.com