Quantum waves seen in molecules

brain pickeR
Messages
3
Reaction score
0
In 1999, Zeilinger and his colleagues fired beams of "carbon-60" or "carbon-70" molecules (so named because each molecule contains 60 or 70 carbon atoms) at a device called a diffraction grating. The individual molecules spread out in wavelike patterns, creating "interference patterns" visible on a monitor. This proved that even very hefty molecules can experience quantum effects -- and, thus, can literally be in more than one place at a time, crazy though this sounds.

-http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2004/02/22/QUANTUM.TMP&type=science
 
Last edited by a moderator:
Physics news on Phys.org
Originally posted by brain pickeR
In 1999, Zeilinger and his colleagues fired beams of "carbon-60" or "carbon-70" molecules (so named because each molecule contains 60 or 70 carbon atoms) at a device called a diffraction grating. The individual molecules spread out in wavelike patterns, creating "interference patterns" visible on a monitor. This proved that even very hefty molecules can experience quantum effects -- and, thus, can literally be in more than one place at a time, crazy though this sounds.

-http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2004/02/22/QUANTUM.TMP&type=science

I think you are about 4 years behind. The Zeilinger's group has gone on to publish a few more of these, the most recent one being the observation of wave-like nature in tetraphenylporphyrin and fluorofullerene.[1] These are at least twice as big as C70 molecules. They currently hold the record in terms of size and mass.

Zz.

[1] L. Hackermüller et al., PRL v.91, p.090408 (2003).
 
Last edited by a moderator:


This discovery by Zeilinger and his team is truly groundbreaking. It provides further evidence for the strange and mind-boggling world of quantum mechanics, where particles can behave as both waves and particles at the same time. The fact that even large molecules, such as carbon-60 and carbon-70, can exhibit quantum behavior is truly fascinating. This not only challenges our understanding of the physical world, but also has potential implications for future technologies, such as quantum computing. It is yet another reminder that there is still so much we have yet to discover and understand about the universe.
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!

Similar threads

Replies
64
Views
10K
Replies
8
Views
4K
Replies
7
Views
3K
Replies
9
Views
3K
Back
Top