Entanglement Born in Collisions ⚡ экспресс
When molecules collide, their motions and internal properties can intertwine like threads in a knot, creating a strange quantum connection. Scientists proposed a way to measure it and showed that this connection can be controlled with a magnetic field. Imagine an orchestra where each instrument is tuned with a single wave of the conductor's baton.
In the quantum world, collisions don't destroy particles but weave them into an unbreakable knot: internal states and motions become entangled like threads. Scientists have developed a universal method to measure this entanglement directly from collision data.
Entanglement can be discrete (like knots on a rope), continuous (smooth loops), or hybrid — a multi-layered tangle reminiscent of Schrödinger's cat in a dozen boxes. To describe it, scientists used an approach proposed by John Wheeler for nuclear reactions.
Using spectroscopy of magnetic resonances, researchers showed that a weak magnetic field can turn entanglement on and off in ultracold collisions (such as rubidium with strontium fluoride). Even in an ordinary reaction of fluorine with hydrogen, the products are born entangled. Chemical reactions become factories of quantum knots for future technologies.
🎯 At ultralow temperatures, molecules move slower than a pedestrian, and a collision that births a quantum knot stretches over milliseconds—an eternity in the micro-world.
🎬 Controlled quantum knots are the foundation of fantastical technologies: from instant communication to teleportation, as in Star Trek.