Transforming pure and mixed states using an NMR quantum homogenizer

The universal quantum homogeniser can transform a qubit from any state to other with arbitrary accuracy, using only unitary transformations perform this task. Here we present an implementation of finite nuclear magnetic resonance (NMR), four-qubit system. We compare the homogenisation mixed pure state, and reverse process. After accounting for effects decoherence in system, find experimental results be consistent theoretical symmetry how states evolve two cases. analyse implications by interpreting as physical preparation information scrambling.