Certain stars made of light can contain quantum scars that refuse to follow the standard laws of heat and chaos.
Most systems eventually reach a state of equilibrium where everything is mixed together and disorganized. Quantum many-body scars are rare states that stay structured and remember where they started. This research connects these strange quantum patterns with the gravity of boson stars using the principle of holography. It shows that the same math describing black holes also explains why some quantum systems never settle down. This link helps physicists understand how information can stay protected even in the most extreme environments in the universe.
Quantum scars from holographic boson stars
arXiv · 2605.02446
Quantum many-body scars are atypical nonthermal states embedded in the chaotic spectrum that evade conventional ergodicity. We show that asymptotically AdS mini-boson stars provide a holographic realization of scar-like states. Their spectrum exhibits random-matrix signatures of chaos while supporting embedded integrable spectral branches. The full holographic system, including black holes, is generically chaotic with most eigenstates satisfying the eigenstate thermalization hypothesis; in contr