Quantum Computing, Qubit, Logic Gates, Quantum Gate, Quantum Bit.
to |0⟩. Similarly, the Pauli-Y maps |0⟩ to i|1⟩ and |1⟩ to -i|0⟩. The Pauli-Z leaves the basic state |0⟩ unchanged and maps |1⟩ to -|1⟩. Due to this nature, the Pauli-Z is sometimes called phase-flip. The Pauli matrices are involutory, meaning that the square of a Pauli matrix is the identity