Dynamical Decoupling in the Presence of Realistic Pulse Errors

Understand

One of the most significant hurdles to be overcome on the path to practical quantum information processors is dealing with quantum errors.

• Dynamical decoupling is a particularly promising approach that complements conventional quantum error correction by eliminating some correlated errors without the overhead of additional qubits.
• In practice, the control pulses used for decoupling are imperfect and thus introduce errors which can accumulate after many pulses.
• These instrumental errors can destroy the quantum state.