In quantum mechanics particles can behave as waves and take many paths through an experiment. It requires only combinations of pairs of paths, rather than three or more, to determine the probability for a particle to arrive somewhere. Researchers at the universities of Vienna and Tel Aviv have addressed this question for the first time explicitly using the wave interference of large molecules behind various combinations of single, double, and triple slits.

Quantum mechanics describes how matter behaves on the smallest mass and length scales. However, the absence of quantum phenomena in our daily lives has triggered a search for minimal modifications of quantum mechanics, which might only be noticeable for massive particles. One candidate is to search for so-called higher-order interference. In standard quantum mechanics, the interference pattern resulting from an arbitrary number of non-interacting open paths can always be described by all combinations of pairs of paths. Any remaining pattern would be due to higher-order interference and be a possible indicator for new physics.

Read more at: https://phys.org/news/2017-08-massive-particles-standard-quantum-theory.html#jCp

**In quantum ****mechanics**** particles can behave as waves and take many paths through an experiment. It requires only combinations of pairs of paths, rather than three or more, to determine the probability for a particle to arrive somewhere. Researchers at the ****universities**** of Vienna and Tel Aviv have addressed this question for the first time explicitly using the wave interference of large molecules behind various combinations of single, double, and triple slits.
Quantum mechanics describes how matter behaves on the smallest mass and length scales. However, the absence of quantum phenomena in our daily lives has triggered a search for minimal modifications of quantum mechanics, which might only be noticeable for massive particles. One candidate is to search for so-called higher-order interference. In standard quantum mechanics, the interference pattern resulting from an arbitrary number of non-interacting open paths can always be described by all combinations of pairs of paths. Any remaining pattern would be due to higher-order interference and be a possible indicator for new physics.**

**click here.**