Wave–particle duality is the concept in quantum mechanics that every particle or quantic entity may be partly described in terms not only of particles, but also of waves.
It expresses the inability of the classical concepts "particle" or "wave" to fully describe the behavior of quantum-scale objects. As Albert Einstein wrote:[1]
"It seems as though we must use sometimes the one theory and sometimes the other, while at times we may use either. We are faced with a new kind of difficulty. We have two contradictory pictures of reality; separately neither of them fully explains the phenomena of light, but together they do."
Through the work of Max Planck, Einstein, Louis de Broglie, Arthur Compton, Niels Bohr and many others, current scientific theory holds that all particles also have a wave nature (and vice versa).[2]
This phenomenon has been verified not only for elementary particles, but also for compound particles like atoms and even molecules.
For macroscopic particles, because of their extremely short wavelengths, wave properties usually cannot be detected.[3]
Although the use of the wave-particle duality has worked well in physics, the meaning or interpretation has not been satisfactorily resolved; see Interpretations of quantum mechanics.
Bohr regarded the "duality paradox" as a fundamental or metaphysical fact of nature. A given kind of quantum object will exhibit sometimes wave, sometimes particle, character, in respectively different physical settings. He saw such duality as one aspect of the concept of complementarity.[4]
Bohr regarded renunciation of the cause-effect relation, or complementarity, of the space-time picture, as essential to the quantum mechanical account.[5]
Werner Heisenberg considered the question further. He saw the duality as present for all quantic entities, but not quite in the usual quantum mechanical account considered by Bohr. He saw it in what is called second quantization, which generates an entirely new concept of fields which exist in ordinary space-time, causality still being visualizable.
Classical field values (e.g. the electric and magnetic field strengths of Maxwell) are replaced by an entirely new kind of field value, as considered in quantum field theory. Turning the reasoning around, ordinary quantum mechanics can be deduced as a specialized consequence of quantum field theory.[6][7]
The wave-particle duality of photons
http://photonterrace.net/en/photon/duality/
You are a light unto my path...
Particle or wave.
My physical walk or
Spiritual journey.
Science once again that science works
How can they waste millions of dollars on this when the climate is changing???
/sarc
Interesting.
God has a sense of humor, but Werner Heisenberg was uncertain about this. This gave him a quantum of solace until he observed his solace and it changed what he observed though he really thought he had observed it and thus altered his solace.
I suspect he drank a lot after this. :)
It’s all so frickin’ annoying...
What it means is that we cannot understand it...we can just throw imaginative maths at it and try to describe the behaviour...we may have hit the knowledge limit...maybe knowledge curve is asymptotic .....always learning but never coming to knowledge of the truth