Journal
PHYSICAL REVIEW A
Volume 90, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.90.042114
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Funding
- European Research Council [320694]
- VCQ fellowship
- European Research Council (ERC) [320694] Funding Source: European Research Council (ERC)
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We define a quantum witness for high-mass matter-wave interferometers that allows us to test fundamental assumptions of macroscopic realism. We propose an experimental realization using absorptive laser gratings and show that such systems can strongly violate a macrorealistic quantum-witness equality. The measurement of the witness can therefore provide clear evidence of physics beyond macrorealism for macromolecules and nanoparticles.
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