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On-chip quantum interference of a superconducting microsphere
- Source :
- Quantum Sci. Technol. 3, 25001 (2018)
- Publication Year :
- 2016
-
Abstract
- 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 using quantum magnetomechanics 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.<br />Comment: 21 pages, 5 figures. Revised version
- Subjects :
- Quantum Physics
Condensed Matter - Mesoscale and Nanoscale Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Quantum Sci. Technol. 3, 25001 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1603.01553
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/2058-9565/aa9d15