Title | N-body interactions between trapped ion qubits via spin-dependent squeezing |

Publication Type | Journal Article |

Year of Publication | 2022 |

Authors | Katz, O, Cetina, M, Monroe, C |

Journal | Physical Review Letters |

Volume | 129 |

Date Published | 8/5/2022 |

Abstract | 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. |

URL | https://arxiv.org/abs/2202.04230 |

DOI | 10.1103/physrevlett.129.063603 |