The Synchronous Dance of Quantum Tops ⚡ экспресс
On IBM's 156-qubit quantum processor, scientists have for the first time observed two contrasting phenomena: global quantum synchronization and a 'quantum chimera state', where one part of the system oscillates coherently while the other behaves chaotically. They achieved this by periodically 'shaking' a spin lattice (Heisenberg model), forcing the qubits to evolve stroboscopically (Floquet dynamics). With weak initial disorder, full synchronization emerged, protected by SU(2) rotational symmetry; with strong disorder, the oscillations broke apart globally, yet local regions retained coherence. It's like a stadium where one section of the crowd chants in rhythm while the rest make random noise. This discovery expands our ability to control complex quantum systems.
Physicists took 28 quantum tops—particles with intrinsic spin—and ran a cyclic process on a quantum computer predicted by Werner Heisenberg nearly a century ago. At first, each top spun however it pleased. But after a few cycles, their wobbles aligned: without any external force, they whirled in unison—order emerged from disorder.
The secret to synchronization is a hidden symmetry, reminiscent of a rule that lets tops spin in any direction yet still "agree." Once the symmetry was broken, the collective dance fell apart. Thus, symmetry protects harmony in the quantum world—a principle that also pervades the standard model of particles.
But the real surprise came with 156 tops. With a small initial spread, all synchronized. But with a large spread, a quantum chimera formed: within small groups, tops spun together, while the rest remained disordered. It's like a crowd of pedestrians where some groups walk in step while others move chaotically, even though the rules of movement are the same for all. Such a mix of order and chaos has been seen before in lasers and chemical reactions, but at the quantum level, it paves the way for ultra-stable devices.
🎯 Chimera states—a blend of order and chaos—were long considered a curiosity, but were later found in chemical reactions, lasers, and even pedestrian behavior.
🎬 In Peter Watts' 'Blindsight,' the collective mind resembles a quantum chimera: its parts act independently but form a unified whole.