Controlled-NOT Gate Based on the Rydberg States of Surface Electrons |
| |
Authors: | Jun Wang Wan-Ting He Cong-Wei Lu Yang-Yang Wang Qing Ai Hai-Bo Wang |
| |
Institution: | 1. Department of Physics, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing, 100875 China;2. Shaanxi Engineering Research Center of Controllable Neutron Source, School of Electronic Information, Xijing University, Xi'an, 710123 China |
| |
Abstract: | Due to the long coherence time and efficient manipulation, the surface electron (SE) provides a perfect 2D platform for quantum computation and quantum simulation. In this work, a theoretical scheme to realize the controlled-NOT gate is proposed, where the two-qubit system is encoded on the four-level Rydberg structure of SE. The state transfer is achieved by a three-level structure with an intermediate level. By simultaneously driving the SE with two external electromagnetic fields, the dark state in the electromagnetically induced transparency effect is exploited to suppress the population of the most dissipative state and increase the robustness against dissipation. The fidelity of the scheme is 0.9989 with experimentally achievable parameters. |
| |
Keywords: | electromagnetically induced transparency quantum gate Rydberg states surface electrons |
|
|