How Trapping a Single Electron Changed Physics
Anas Qasem
The experiments that held one electron in place for months, and why they still matter.
Holding a single electron still sounds impossible, yet physicists managed it decades ago using carefully shaped electric and magnetic fields.
The technique, called a particle trap, allowed incredibly precise measurements of the electron's properties and tested our best theories of physics.
Today, similar traps are at the heart of atomic clocks and quantum computers.