A shimmering type of quantum matter that “ticks” forever without any energy input has just taken a giant leap from the theoretical to the practical.
Scientists at Finland’s Aalto University have achieved what was previously thought impossible: they’ve connected a time crystal to an external device for the first time ever. The breakthrough, published in Nature Communications, opens the door to powerful new technologies including ultra-precise sensors and improved quantum computer memory.
What Is a Time Crystal?
First proposed by Nobel Prize-winning physicist Frank Wilczek in 2012, a time crystal is a quantum system that organises itself into repeating patterns in time rather than space — like a clock that never winds down. They exist in their lowest energy state while still exhibiting constant, repeating motion. Scientists first confirmed their existence experimentally in 2016.
The Breakthrough
“Perpetual motion is possible in the quantum realm so long as it is not disturbed by external energy input,” says Academy Research Fellow Jere Mäkinen. “That is why a time crystal had never before been connected to any external system. But we did just that and showed, also for the first time, that you can adjust the crystal’s properties using this method.”
The team used radio waves to inject magnons into a Helium-3 superfluid cooled to near absolute zero. Once the radio input was switched off, the magnons self-organised into a time crystal that continued ticking for up to 108 cycles — lasting several minutes before fading.
Why This Matters
By linking the time crystal to a tiny mechanical oscillator, researchers showed they can control and interact with it without destroying it. This could lead to:
- Highly precise quantum sensors
- Improved memory systems for quantum computers
- New ways to study quantum mechanics at the boundary between quantum and classical physics
We’re watching science fiction become science fact — one quantum tick at a time.
Source: Aalto University, Nature Communications (May 5, 2026)
