Walsh4 {QGameTheory}

Walsh-Hadamard gate

Description

This function operates the Walsh-4 gate on a conformable input matrix or a vector.

Usage

Walsh4(n)

Arguments

n

a vector/matrix

Value

A matrix or a vector after performing the Walsh-4 gate operation on a conformable input matrix or a vector.

References

https://en.wikipedia.org/wiki/Quantum_logic_gate
http://www2.optics.rochester.edu/~stroud/presentations/muthukrishnan991/LogicGates.pdf
https://arxiv.org/pdf/quant-ph/0506219.pdf
https://en.wikipedia.org/wiki/Hadamard_transform

Examples

init()
Walsh4(Q$I4)
Walsh4(Q$Q10)