BlackHoleChaos · Chaos and thermal effects in black hole interactions

Chaos and thermal effects in black hole interactions

The convergence of chaos, thermal physics, and quantum information in the context of black hole dynamics poses one of the most fundamental and technically rich challenges in theoretical physics. Black holes represent unique laboratories where these domains are not only coexistent but deeply entangled: they exhibit classical chaotic behavior in their near-horizon dynamics, quantum thermal emission through Hawking radiation, and obey a Bekenstein-Hawking entropy law proportional to horizon area—suggesting an underlying statistical origin. Unraveling the microscopic mechanisms that give rise to these macroscopic phenomena is essential for resolving foundational questions at the intersection of general relativity, quantum field theory in curved spacetime, and quantum statistical mechanics. This project aims to make progress on this front by developing a perturbative, S-matrix-based framework for the quantitative analysis of chaotic and thermal effects in black hole physics, using perturbative string theory as a UV-complete setting for gravitational interactions. In this approach, black holes are modeled as ensembles or superpositions of highly excited string states (HES) or coherent string states (CSS), whose scattering amplitudes encode rich dynamical information about entropy production, quantum decoherence, and information scrambling. By computing string-level decay and absorption processes, analyzing the spectral statistics of the associated amplitudes, and probing the emergence of universal thermal signatures, the project seeks to identify the microscopic signatures of black hole thermodynamics and to quantify the role of quantum chaos in horizon-scale dynamics. The broader objective is to advance toward a microscopically controlled understanding of black hole interactions, with implications for quantum gravity, gravitational wave phenomenology, and the unitarity problem in black hole evaporation. By anchoring these questions in a rigorous and computable framework, the project aspires to contribute to the long-term objective of a quantum-mechanical, unitary, and thermodynamically consistent description of black holes, grounded in the principles of string theory and holography, and guided by the phenomenological input of emerging gravitational wave astronomy. The specific objectives of the project are: a) To formulate a quantum gravity description of black hole interactions, focusing on the generation of chaos and thermal effects from first principles. b) To resolve key technical challenges related to S-matrix unitarity and the incorporation of external states characterized by entropy, horizon, and angular momentum. c) To investigate how chaotic behavior influences the structure of the black hole horizon, with implications for holography and quantum information flow. d) To identify and analyze observable signatures of chaos and thermalization in gravitational and electromagnetic wave emissions (GWs and EMWs), particularly in processes involving highly excited and entropic states.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз