# Quantum Class 11, Mon 2022-10-03

## 1 Another view of superposition

The quantum states of some system are solutions of a linear PDE. There is a basis set of solutions. Linear combos are also solutions. That's superposition.

## 2 Simon's periodicity

Blackbox $F: \{0,1\}^n \to \{0,1\}^n$

For some unknown $c$, $F(x\oplus c) = F(x)$.

Determine $c$.

## 3 Quantum Fourier Transform

https://qiskit.org/textbook/ch-algorithms/quantum-fourier-transform.html

## 4 Quantum Phase Estimation

https://qiskit.org/textbook/ch-algorithms/quantum-phase-estimation.html

## 5 Inauguration Day Oct 6

There are student seats available at the investiture. See me if interested.