Ruling Out Multi-Order Interference in Quantum Mechanics

@article{Sinha2010RulingOM,
  title={Ruling Out Multi-Order Interference in Quantum Mechanics},
  author={Urbasi Sinha and Christophe Couteau and Thomas Jennewein and Raymond Laflamme and Gregor Weihs},
  journal={Science},
  year={2010},
  volume={329},
  pages={418 - 421}
}
Quantum Mechanics Born to Be Linear Two pillars of modern physics, quantum mechanics and gravity, have so far resisted attempts to be reconciled into one grand theory. This has prompted suggestions that theories about either or both need to be modified at a fundamental level. Sinha et al. (p. 418; see the Perspective by Franson) looked at the interference pattern resulting from a number of slits, to test the “Born rule” of quantum mechanics. They verified that Born holds true—that the… 
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