论文标题
$ n $ - 通过自旋依赖挤压的被困的离子Qubits之间的体互动
$N$-body interactions between trapped ion qubits via spin-dependent squeezing
论文作者
论文摘要
我们描述了一个简单的协议，用于单步生成$ n $ thombody纠缠的原子离子量子位之间的相互作用。我们表明，集体原子运动上的量子状态依赖性挤压操作和位移力可以产生完整的$ n $ body互动。类似于大多数捕获的离子量子计算机和模拟器的核心的Mølmer-Sørensen两体ISING相互作用，所提出的操作对运动状态相对不敏感。我们展示了这种$ n $ - body Gate操作如何允许单步实现$ n $ bit门的家族，例如功能强大的$ n $ -toffoli Gate，当且仅当所有其他$ n $ -1 $ 1 $ QUBITS都处于特定状态时，它才会翻转单个Qubit。
We describe a simple protocol for the single-step generation of $N$-body entangling interactions between trapped atomic ion qubits. We show that qubit state-dependent squeezing operations and displacement forces on the collective atomic motion can generate full $N$-body interactions. Similar to the Mølmer-Sørensen two-body Ising interaction at the core of most trapped ion quantum computers and simulators, the proposed operation is relatively insensitive to the state of motion. We show how this $N$-body gate operation allows the single-step implementation of a family of $N$-bit gate operations such as the powerful $N$-Toffoli gate, which flips a single qubit if and only if all other $N$-$1$ qubits are in a particular state.
