Lewis-Swan R J, Castro J C Zuñiga, Barberena D, Rey A M
Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, Norman, Oklahoma 73019, USA.
Center for Quantum Research and Technology, The University of Oklahoma, Norman, Oklahoma 73019, USA.
Phys Rev Lett. 2024 Apr 19;132(16):163601. doi: 10.1103/PhysRevLett.132.163601.
We theoretically investigate prospects for the creation of nonclassical spin states in trapped ion arrays by coupling to a squeezed state of the collective motion of the ions. The correlations of the generated spin states can be tailored for quantum-enhanced sensing of global or differential rotations of subensembles of the spins by working with specific vibrational modes of the ion array. We propose a pair of protocols to utilize the generated states and demonstrate their viability even for small systems, while assessing limitations imposed by spin-motion entanglement and technical noise. Our work suggests new opportunities for the preparation of many-body states with tailored correlations for quantum-enhanced metrology in spin-boson systems.
我们从理论上研究了通过与离子集体运动的压缩态耦合在捕获离子阵列中创建非经典自旋态的前景。通过使用离子阵列的特定振动模式，可以为自旋子集合的全局或差分旋转的量子增强传感定制所生成自旋态的相关性。我们提出了一对协议来利用所生成的态，并证明了它们即使对于小系统也是可行的，同时评估了自旋 - 运动纠缠和技术噪声所带来的限制。我们的工作为在自旋 - 玻色子系统中制备具有定制相关性的多体态以实现量子增强计量学提供了新机会。
