论文标题
声子介导的自旋旋转相互作用
Phonon-mediated spin-spin interactions between trapped Rydberg atoms
论文作者
论文摘要
从理论上讲，我们研究了被困在光学镊子中的中性原子之间建立声子介导的自旋旋转相互作用的可能性。通过将原子耦合到Rydberg国家，出现了集体运动模式。我们表明，这些可用于介导原子之间的有效自旋旋转相互作用或与被困离子中使用的方案相比。特别是，我们在一种新型方案中采用Rydberg敷料来诱导所需的相互作用，我们表明可以复制Mølmer-Sørensen纠缠方案的工作。 Mølmer-sørensen门被广泛用于使用被困的离子量子位用于新兴的量子计算机中，目前具有所考虑的任何量子门的一些最高保真度。我们发现即使在非零温度下，即使在两种原子状态的连贯时间演变中，任意高保真度。
We theoretically investigate the possibility of creating phonon-mediated spin-spin interactions between neutral atoms trapped in optical tweezers. By laser coupling the atoms to Rydberg states, collective modes of motion appear. We show that these can be used to mediate effective spin-spin interactions or quantum logic gates between the atoms in analogy to schemes employed in trapped ions. In particular, we employ Rydberg dressing in a novel scheme to induce the needed interaction, and we show that it is possible to replicate the working of the Mølmer-Sørensen entanglement scheme. The Mølmer-Sørensen gate is widely used in emerging quantum computers using trapped ion qubits and currently features some of the highest fidelities of any quantum gate under consideration. We find arbitrarily high fidelity for the coherent time evolution of the two-atom state even at non-zero temperature.
