The SPD is one of the most important basis for quantum mechanics today. It was first performed in the 1800s by the English scientist Thomas Young. The goal was to determine if light is composed of particles or waves.
He noted that the photons act as both particle and wave, a discovery that has contributed to the development of principles such as quantum entanglement and superposition. The latter means that a particle can be simultaneously in two states (namely, waves and particulates, as opposed to particles or waves).
What the team has recently UV duplicate experiment with photons of Young, but very large molecules. The researchers were intrigued when they discovered that the same interference patterns were known scale of molecules observed not only with subatomic particles.
"In some ways it's a bit surprising, because these are very complex and flexible molecules, they change their shape as they fly into the machine, 'expert says Markus Arndt.
"If you talk to the community, maybe 50 percent say it is normal because it is quantum physics, and the other 50 percent would be really scratching their heads, because it is quantum physics," adds the researcher, a leader in new project.
Historically, Young experiment showed that light is a wave, a. Search disagree with the beliefs 17th and 18th centuries, but Albert Einstein showed in 1905 that light is a particle, and thus the concept of wave-particle duality is born, reports LiveScience.
In 1961, the German physicist Claus Jönsson determined that the interference patterns caused by light from the DSW is not exclusively to photons, but may be achieved by using electrons. This also caused a revolution in physics.
"Seeing the experience of two slots, it's like watching a total eclipse for the first time, a chill runs through you and primitive hairs on your arms stand You think this thing is true wave and particle. the foundation of your ability to move and sway, "said Alison Campbell.
She has an appointment as an astronomer at the University of St. Andrews, Scotland. Details of the new study appearing in the March 25 online issue of the journal Nature Nanotechnology high.