Action-Noise-Assisted Quantum Control

Abstract

We study the effect of action noise on state-to-state control protocols. Action noise creates dephasing in the instantaneous eigenbasis of the Hamiltonian and hampers the fidelity of the final state with respect to the target state. We find that for shorter protocols the noise more strongly influences the dynamics and degrades fidelity. We suggest improving the fidelity by inducing stronger dephasing rates along the process. The effects of action noise on the dynamics and its manipulation is described for a general Hamiltonian and is then studied by examples.

References in corpus (8)

• Shortcut to adiabatic passage in two and three level atoms
• Lewis-Riesenfeld invariants and transitionless tracking algorithm
• Fast atomic transport without vibrational heating
• Adiabatic approximation in open quantum systems
• Fast optimal transition between two equilibrium states
• Control landscapes for two-level open quantum systems
• High-fidelity error-resilient composite phase gates
• Effect of Poisson noise on adiabatic quantum control