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Non-classicality tests and entanglement witnesses for macroscopic mechanical superposition states

zqyin 添加于 2014-12-9 11:10 | 1102 次阅读 | 0 个评论

作者
Gittsovich O, Moroder T, Asadian A, Gühne O, Rabl P
摘要
We describe a set of measurement protocols for performing non-classicality tests and the verification of entangled superposition states of macroscopic continuous variable systems, such as nanomechanical resonators. Following earlier works, we first consider a setup where a two-level system is used to indirectly probe the motion of the mechanical system via Ramsey measurements and discuss the application of this methods for detecting non-classical mechanical states. We then show that the generalization of this techniques to multiple resonator modes allows the conditioned preparation and the detection of entangled mechanical superposition states. The proposed measurement protocols can be implemented in various qubit-resonator systems that are currently under experimental investigation and find applications in future tests of quantum mechanics at a macroscopic scale.
详细资料
- 关键词: quant-ph
- 文献种类:手稿
- 期卷页: 2014年
- 日期: 2014-12-6
- 发布方式: arXiv e-prints
- 备注:arXiv:1412.2167v1; 10 pages, 5 figures (no animals were harmed)
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