Nobel Prize in Physics 2025 : The Nobel Prize in Physics 2025 is out, and the winners are John Clarke, Michel H Devoret, and John M. Martinis, all three working in the USA, “for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.”

This is the second time in three years — after 2022 — that the Physics Nobel has been given for work in the field of quantum mechanics.

So, what exactly have these three scientists done, and how does it matter in the wider world? We explain.

First, what are quantum mechanical effects?

What does “the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit” even mean? To understand this, let us first understand what quantum mechanical effects are.

Quantum

See Full Page