What are macroscopic quantum phenomena?
Quantum phenomena are not apparent on the macroscopic scale.
As we know that quantum physics is that theoretical study of physics which incorporates the wave particle duality of matter and radiation.
For microscopic matter like electrons, the wave like properties are apparent and as such we use quantum mechanics to study them.
From the de Broglie relationship, the wavelength of a matter wave associated with a particle with mass
In the macroscopic scale, where