Optimally Controlled Non-Adiabatic Quantum State Transmission in the Presence of Quantum Noise

Abstract

Pulse-controlled non-adiabatic quantum state transmission (QST) was proposed many years ago. However, in practice environmental noise inevitably damages communication quality in the proposal. In this paper, we study the optimally controlled non-adiabatic QST in the presence of quantum noise. By using the Adam algorithm, we find that the optimal pulse sequence can dramatically enhance the transmission fidelity of such an open system. In comparison with the idealized pulse sequence in a closed system, it is interesting to note that the improvement of the fidelity obtained by the Adam algorithm can even be better for a bath strongly coupled to the system. Furthermore, we find that the Adam algorithm remains powerful for different numbers of sites and different types of Lindblad operators, showing its universality in performing optimal control of quantum information processing tasks.

Special Issue on Photonic State Tomography: Methods and Applications

“…The last paper of the Special Issue, i.e., "Optimally Controlled Non-Adiabatic Quantum State Transmission in the Presence of Quantum Noise", presents an investigation into pulse-controlled non-adiabatic quantum state transmission, addressing the challenge of environmental noise [15]. By utilizing the Adam algorithm, the authors uncover the potential of optimal pulse sequences to dramatically enhance transmission fidelity in open quantum systems.…”