Concatenanted Dynamic Decoupling
- This notebook simulates concatenated dynamical decoupling (CDD) on a qubit coupled to a finite bath, and evaluates robustness via Uhlmann fidelity as a function of both time and concatenation level m (up to ). The method numerically evolves the state under a system–bath Hamiltonian with inserted CDD pulse sequences, then computes fidelity curves to quantify error suppression.
- ==Results show a clear optimal sequence depth around for a fixed time —beyond that, performance begins to fall off (over-concatenation overhead outweighs gains)==
Presentation | Github