Finnish physicists have made a breakthrough in quantum technology. They have developed a new quantum calorimeter with record sensitivity.
The device can measure energy as small as one zeptojoule (one trillionth of a nanocoulomb). This will give a strong boost to the evolution of quantum computers.
The new technology will enable the detection of axion particles, the lightest form of dark matter. Professor Mikko Möttönen stated that this achievement allows counting single photons in microwave radiation.
The calorimeter consists of a gold-platinum rod and aluminum disks. At near absolute zero temperature, aluminum becomes superconducting while the alloy retains normal conductivity.
