Wave particle duality resolved


Wave particle. image: Timothy Yeo / CQT, National University of Singapore

The mysterious wave particle duality issue of whether quantum mechanical systems behave as a particle or wave seems to have been resolved. 

On a very rough reading the reason a quanta of energy appears in one place and not another seems to be re-interpreted as a maximum versus a minimum of entropy of a system. 

This is noted in the abstract as :

Here we show that WPDRs [wave–particle duality relations] correspond precisely to a modern formulation of the uncertainty principle in terms of entropies, namely, the min- and max-entropies. This observation unifies two fundamental concepts in quantum mechanics.

This comes from the folks at Centre for Quantum Technologies at the National University of Singapore.

For more technical details see the links below...

Some articles on the web that relate to this are at


which is based on




© Richard Conan-Davies 2017 | contact | permissions | privacy | site map |