论文标题
一对时钟Qubit磁分子中的电二克门
Electrical two-qubit gates within a pair of clock-qubit magnetic molecules
论文作者
论文摘要
通过使用时钟过渡（CTS）证明了$ _ {10} $分子旋转Qubits的增强相干性。最近显示的是，在CTS上操作时，可以使用电场选择性地解决$ _ {10} $分子指向给定方向的$ _ {10} $，该晶体包含两种相同但相同的相关分子。在本文中，我们从理论上探讨了使用电场在两个相邻CT保护的$ _ {10} $ Qubits中纠缠两量量子门的可能性。我们估计$ t_1 $，$ t_2 $的热演化，从声子的角度发现CTS也是最佳的工作点，并列出了如何结合一系列微波炉和电场脉冲，以在2 Qubit的操作空间内实现相干控制，从而可以免受Spinon-Bath和Phonon-Bath-Bath bath ventecorence的影响。最后，我们发现了两个时钟分子之间的相互作用产生的高度保护的1量子空间。
Enhanced coherence in HoW$_{10}$ molecular spin qubits has been demonstrated by use of Clock Transitions (CTs). More recently it was shown that, while operating at the CTs, it was possible to use an electrical field to selectively address HoW$_{10}$ molecules pointing in a given direction, within a crystal that contains two kinds of identical but inversion-related molecules. Herein we theoretically explore the possibility of employing the electric field to effect entangling two-qubit quantum gates among two neighbouring CT-protected HoW$_{10}$ qubits within a diluted crystal. We estimate the thermal evolution of $T_1$, $T_2$, find that CTs are also optimal operating points from the point of view of phonons, and lay out how to combine a sequence of microwave and electric field pulses to achieve coherent control within a 2-qubit operating space that is protected both from spin-bath and from phonon-bath decoherence. Finally, we found a highly protected 1-qubit subspace resulting from the interaction between two clock molecules.
