Accelerated high-fidelity Bell states generation based on dissipation dynamics and Lyapunov control

In this paper, we propose a rapid and high-fidelity protocol to generate Bell states by dissipation dynamics and Lyapunov control. With a designed dissipative path, an arbitrary initial state can evolve into the target Bell state with high fidelity. Besides, the evolution is accelerated by Lyapunov control pulses, particularly at the early stage of the evolution. The time consumption of achieving a certain threshold of required fidelity is shortened remarkably. By analyzing the impact of the pulses on the protocol, we show how to select the suitable pulses and their strengths to achieve a better fidelity. At last, we numerically prove that the protocol is robust against possible noises. The results presented in the paper may open a new path to achieve fast and high-fidelity generation of entangled states based on dissipation dynamics.