Physicists Smash Record For Wave-Particle Duality
Researchers have observed quantum superposition in molecules containing around 5000 protons, 5000 neutrons and 5000 electrons
One of the central concepts of quantum mechanics is wave-particle dualitythat all objects can be thought of as either a wave or as a particle. Thats hard, if not impossible, to imagine. But its trivial to demonstrate in a school laboratory.
In the famous double slit experiment, a beam of particles such as electrons, travels through a double slit and then hits a screen behind where the arrival of each electron is recorded at a specific point on the screen.
But while each electron arrives like a particle, many electrons together create an interference pattern that can only be explained if the electrons also behave like waves. These waves become superposed and so interfere.
Stranger still is the prediction that the same effect ought to be measurable for much larger objects too. According to quantum mechanics, wave-particle duality and quantum superpositions must also occur for macroscopic objects such as viruses, cells and even baseballs.
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https://medium.com/the-physics-arxiv-blog/462c39db8e7b