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Quantum Interference of a Microsphere

zqyin 添加于 2016-3-7 09:34 | 986 次阅读 | 0 个评论

作者
Pino H, Prat-Camps J, Sinha K, Venkatesh BP, Romero-Isart O
摘要
We propose and analyze an all-magnetic scheme to perform a Young\'s double slit experiment with a micron-sized superconducting sphere of mass $ gtrsim 10^{13}$ amu. We show that its center of mass could be prepared in a spatial quantum superposition state with an extent of the order of half a micrometer. The scheme is based on magnetically levitating the sphere above a superconducting chip and letting it skate through a static magnetic potential landscape where it interacts for short intervals with quantum circuits. In this way a protocol for fast quantum interferometry is passively implemented. Such a table-top earth-based quantum experiment would operate in a parameter regime where gravitational energy scales become relevant. In particular we show that the faint parameter-free gravitationally-induced decoherence collapse model, proposed by Di\'osi and Penrose, could be unambiguously falsified.
详细资料
- 关键词: quant-ph; cond-mat.mes-hall
- 文献种类:手稿
- 期卷页: 2016年
- 日期: 2016-3-5
- 发布方式: arXiv e-prints
- 备注:arXiv:1603.01553v1; 20 pages, 5 figures
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