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This research establishes a concrete quantum spin chain definition for black hole states by breaking integrability in the Heisenberg model to mimic gravitational chaos. By calculating an effective central charge of approximately 5.2, the study bridges condensed matter physics with gauge-gravity duality using thermal correlators as a diagnostic tool. The findings provide new theoretical evidence for how entanglement entropy scales logarithmically within these simulated high-energy environments.

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Niels Bohr Institute Defines Black Hole States Using Thermal Correlators

Quantum ZeitgeistJuly 15, 20265 min read

Niels Bohr Institute research defines a black hole state within quantum spin chains, using thermal correlators & the Heisenberg model.

Researchers at the Niels Bohr Institute and Nordita have defined a black hole state using a quantum spin chain model, calculating an effective central charge of approximately 5.2 for the entanglement entropy, which grows logarithmically with this central charge. By applying the Heisenberg model, the team offers an integrable system for investigating these phenomena, revealing a connection between condensed matter physics and the study of black holes. They also find evidence for thermalization at infinite temperature. This work builds upon the idea that at the heart of gauge-gravity duality lies a remarkable identification…

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