Quantum Computing, Computer Science, Software Development, Software Engineering, Towards Data Science.
Pauli X-gate or matrix itself. Here’s what X looks like: / 0 1 \ \ 1 0 / In terms of proper notation, applying a quantum gate to a qubit is a matter of multiplying a ket vector by a matrix. In this case, we are multiplying the spin-up ket vector |0> by the Pauli X-gate or matrix X. Here’s what X|0>