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arXiv 1909.02668physics.atom-phquant-ph
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囚禁极性分子离子的偶极-声子量子逻辑

Dipole-phonon quantum logic with trapped polar molecular ions

Wesley C. Campbell, Eric R. Hudson

摘要:

被捕获的分子离子的电偶极矩与受限库仑晶体的构型之间的相互作用将分子的取向与其运动耦合。我们考虑利用这种相互作用来初始化、处理和读出编码在分子离子量子比特中的量子信息而不需要光学照射分子的实际可行性。我们提出了两种方案,其中分子离子可以与共捕获的原子离子量子比特纠缠,提供了一种用于分子状态制备和测量的方法。我们还表明,虚声子交换可以显着提高分子间偶极-偶极相互作用的范围,允许广泛分离的分子离子量子比特之间的强耦合。

英文摘要:

The interaction between the electric dipole moment of a trapped molecular ion and the configuration of the confined Coulomb crystal couples the orientation of the molecule to its motion. We consider the practical feasibility of harnessing this interaction to initialize, process, and read out quantum information encoded in molecular ion qubits without optically illuminating the molecules. We present two schemes wherein a molecular ion can be entangled with a co-trapped atomic ion qubit, providing, among other things, a means for molecular state preparation and measurement. We also show that virtual phonon exchange can significantly boost range of the intermolecular dipole-dipole interaction, allowing strong coupling between widely-separated molecular ion qubits.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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