Fullerene: A Ball That Shoots Single Photons ⚡ экспресс
Imagine a light source that emits photons one at a time, like drops from a precisely adjusted faucet. Scientists placed carbon molecules (fullerenes) into plastic and obtained such a source at room temperature. This could make quantum technologies cheaper and more accessible. Could the future of secure communication be built from graphite and polystyrene?
Ordinary light is a stream of billions of particles flying chaotically. But for quantum communication, you need light that comes one by one, like water from an IV drip. Scientists found a simple way: they took fullerene — carbon balls shaped like a soccer ball — and mixed them with ordinary polystyrene (the stuff disposable cups are made of). The result is a film that, when illuminated, emits strictly single photons.
The secret lies in fluorescence — the ability of molecules to glow after absorbing energy. But fullerene in plastic behaves like a perfect faucet: every time it gets a dose of light, it gives back exactly one photon. No more, no less. Such a source doesn’t need refrigerators or complex lasers — it works at room temperature.
Sources like this are the key to quantum cryptography (absolutely secure data transmission) and quantum computers. Fullerene is cheap, stable, and easily integrated into optical fiber — the glass threads that carry the internet. Soon, a piece of plastic with carbon balls could protect your data from any hack. And to think, fullerene was first spotted in ordinary candle soot — now it’s making quantum communication everyday.
🎯 Fullerene C60 was predicted long before synthesis and even occurs in nature — for example, in candle soot.