Quantum harmonic oscillator state synthesis by reservoir engineering
Quantum harmonic oscillator state synthesis by reservoir engineering
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DOI：
10.1126/science.1261033
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发表时间：
2015-01-02
期刊：
影响因子：
56.9
通讯作者：
Home, J. P.
中科院分区：
文献类型：
--
作者：
Kienzler, D.;Lo, H. -Y.;Home, J. P.
在退相干存在的情况下产生强健的量子态是在更大尺度上探索量子力学的主要挑战。利用单个囚禁离子的机械运动，我们利用油藏工程学在噪声存在的情况下产生压缩的、相干的和移位压缩的态作为稳态。我们通过产生两态相关的自旋运动拉比振荡来验证所创建的态，从而产生高对比度测量。对于冷却和测量，我们使用自旋振子耦合，它在工程Fock态的基础上提供振荡器状态之间的跃迁。我们的方法应该有助于在广泛的物理系统中研究纠缠、量子计算和开放系统量子模拟。
The robust generation of quantum states in the presence of decoherence is a primary challenge for explorations of quantum mechanics at larger scales. Using the mechanical motion of a single trapped ion, we utilize reservoir engineering to generate squeezed, coherent, and displaced-squeezed states as steady states in the presence of noise. We verify the created state by generating two-state correlated spin-motion Rabi oscillations, resulting in high-contrast measurements. For both cooling and measurement, we use spin-oscillator couplings that provide transitions between oscillator states in an engineered Fock state basis. Our approach should facilitate studies of entanglement, quantum computation, and open-system quantum simulations in a wide range of physical systems.