When a single photon encounters a barrier with two thin openings, it produces an interference pattern on a screen placed behind the openings – but only if the photon’s path is not observed. This ...

H. Yan et al. Experimental observation of simultaneous wave and particle behavior in a narrowband single-photon wave packet. Physical Review A . Vol. 91, April 2015, p. 042132. doi: 10.1103 ...

Since its development 100 years ago, quantum mechanics has revolutionized our understanding of nature, revealing a bizarre ...

In a sense, then, a photon or any other quantum object acts like both a particle and a wave. This ‘wave–particle duality’ embodies many of the central conceptual mysteries of quantum ...

The team used an interferometer to split a photon wave function down two possible paths before meeting again. On each path, the team placed glass plates to change the polarization of light, ...

But if the photon travels down the corridor without the bomb, something weird happens: Its wave function, in traveling down both corridors, is cut short in one by the bomb. As it's not quite a ...

Many-Worlds Interpretation Challenged As Photon Seems To Be In Two Places At Once ... This has been a cornerstone of quantum mechanics, demonstrating the particle-wave nature of light and matter.