Open AccessDistributed geometric quantum computation based on the optimized-control-technique in a cavity-atom system via exchanging virtual photons
Author(s) -
M.-R. Yun,
F.-Q. Guo,
Meng Li,
L.-L. Yan,
Mang Feng,
Y.-X. Li,
ShiLei Su
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.418626
Subject(s) - robustness (evolution) , cavity quantum electrodynamics , photon , quantum computer , physics , quantum decoherence , computation , quantum , geometric phase , quantum gate , quantum optics , optics , quantum channel , computer science , quantum sensor , quantum error correction , quantum network , rydberg atom , quantum information , quantum mechanics , open quantum system , algorithm , rydberg formula , gene , ion , ionization , biochemistry , chemistry
We propose a scheme for quantum geometric computation on a fiber-cavity-fiber system, in which two atoms are located in two single-mode cavities, respectively, connected with each other by optical fiber. This scheme not only has the feature of virtual excitation of photons in the cavity quantum electrodynamics (CQED) that can reduce the effect of decay effectively but also has the advantage of geometric phase to withstand noises due to its built-in noise-resilience feature and robust merit. Specifically, our proposal combined with optimized-control-technology (OCT) can reduce gate operation error by adjusting the time-dependent amplitude and phase of the resonant field which further enhances the robustness of the quantum operation. The robustness against decoherence is demonstrated numerically and the scheme may be applied in the remote quantum information processing tasks and quantum computation.