Annabestani Razieh, Cory David G
1Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1 Canada.
2Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1 Canada.
Quantum Inf Process. 2018;17(2):22. doi: 10.1007/s11128-017-1792-7. Epub 2017 Dec 16.
We propose a proof-of-principle experiment to encode one logical qubit in noise protected subspace of three identical spins in a methyl group. The symmetry analysis of the wavefunction shows that this fermionic system exhibits a symmetry correlation between the spatial degree of freedom and the spin degree of freedom. We show that one can use this correlation to populate the noiseless subsystem by relying on the interaction between the electric dipole moment of the methyl group with a circularly polarized microwave field. Logical gates are implemented by controlling both the intensity and phase of the applied field.
我们提出了一个原理验证实验，以在甲基中三个相同自旋的噪声保护子空间中编码一个逻辑量子比特。波函数的对称性分析表明，这个费米子系统在空间自由度和自旋自由度之间表现出对称相关性。我们表明，可以通过依赖甲基的电偶极矩与圆极化微波场之间的相互作用，利用这种相关性来填充无噪声子系统。通过控制外加场的强度和相位来实现逻辑门。
