Physicists in a laboratory observe ultracold cesium atoms with laser beams, illustrating Bethe string discovery

Ultracold Cesium Atoms: How Bethe Strings from 1931 Are Finally Revealed

Physicists have finally observed Bethe strings in ultracold cesium atoms, a quantum phenomenon predicted in…
Crystal on a lab table glowing under laser light, symbolizing quantum physics discovery

Floquet Topological States: The Quantum Leap Verified by Physicists in 2026

Physicists have finally recorded direct evidence of a Floquet topological state—a long-theorized, light-induced quantum phase.…