Deterministic generation of hybrid high- N NOON states with Rydberg atoms trapped in microwave cavities
Deterministic generation of hybrid high- N NOON states with Rydberg atoms trapped in microwave cavities
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DOI：
10.1103/physreva.101.013804
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发表时间：
2018-09
影响因子：
2.9
通讯作者：
Naeimeh Mohseni;Shahpoor Saeidian;J. Dowling;C. Navarrete-Benlloch
中科院分区：
文献类型：
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作者：
Naeimeh Mohseni;Shahpoor Saeidian;J. Dowling;C. Navarrete-Benlloch
囚禁离子是量子技术最有前途的平台之一。它们是迄今为止开发的最精确的时钟和传感器的核心，这些时钟和传感器利用离子的单个电子或运动自由度的量子相干性。然而，未来的高精度量子计量学将需要使用几个自由度的纠缠态。在这里，我们提出了一个协议，能够产生高N00N态之间的纠缠被困离子的运动和电磁腔模式，一个所谓的混合配置共享。我们证明了该建议的可行性，在一个平台组成的被困离子激发到其圆形里德伯态流形，耦合到一个高Q微波腔的模式。这种紧凑的混合架构的优点是，它可以耦合到非常不同的性质的信号，修改离子运动或腔模式。此外，完全相同的设置可以在状态准备阶段之后立即使用，以实现量子计量所需的干涉仪。
Trapped ions are among the most promising platforms for quantum technologies. They are at the heart of the most precise clocks and sensors developed to date, which exploit the quantum coherence of a single electronic or motional degree of freedom of an ion. However, future high precision quantum metrology will require the use of entangled states of several degrees of freedom. Here we propose a protocol capable of generating high N00N states where the entanglement is shared between the motion of a trapped ion and an electromagnetic cavity mode, a so called hybrid configuration. We prove the feasibility of the proposal in a platform consisting of a trapped ion excited to its circular Rydberg state manifold, coupled to the modes of a high Q microwave cavity. This compact hybrid architecture has the advantage that it can couple to signals of very different nature, which modify either the ions motion or the cavity modes. Moreover, the exact same setup can be used right after the state preparation phase to implement the interferometer required for quantum metrology.