A quenched chiral spin chain produces analog Hawking radiation with non-Planckian spectrum but Poissonian statistics, detectable by a weakly coupled qubit sensor that reveals the horizon-induced temperature.
Spectroscopy of the quantum black hole
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abstract
We develop the idea that, in quantum gravity where the horizon fluctuates, a black hole should have a discrete mass spectrum with concomitant line emission. Simple arguments fix the spacing of the lines, which should be broad but unblended. Assuming uniformity of the matrix elements for quantum transitions between near levels, we work out the probabilities for the emission of a specified series of quanta and the intensities of the spectral lines. The thermal character of the radiation is entirely due to the degeneracy of the levels, the same degeneracy that becomes manifest as black hole entropy. One prediction is that there should be no lines with wavelength of order the black hole size or larger. This makes it possible to test quantum gravity with black holes well above Planck scale.
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The dark bubble model realizes the dark dimension and fat graviton proposals by predicting a micron-sized extra dimension, gravity weakening at that scale, a tens-of-TeV string scale, and measurable positive spatial curvature.
Modeling black hole absorption as discrete recursion yields area-law entropy with logarithmic corrections whose coefficients depend on spacetime dimension and charge for Schwarzschild and Reissner-Nordström cases.
The paper provides state-of-the-art predictions for the Einstein Telescope's impact on fundamental physics, cosmology, compact-object astrophysics, and multi-messenger astronomy across its proposed configurations.
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This review surveys calculations and interpretations of quasinormal modes for black holes in astrophysics, higher dimensions, and holographic duals without presenting new results.
citing papers explorer
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Emergent Hawking Radiation and Quantum Sensing in a Quenched Chiral Spin Chain
A quenched chiral spin chain produces analog Hawking radiation with non-Planckian spectrum but Poissonian statistics, detectable by a weakly coupled qubit sensor that reveals the horizon-induced temperature.
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Dark bubbles, dark dimensions and fat gravitons
The dark bubble model realizes the dark dimension and fat graviton proposals by predicting a micron-sized extra dimension, gravity weakening at that scale, a tens-of-TeV string scale, and measurable positive spatial curvature.
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Classical Corrections to Black Hole Entropy II
Modeling black hole absorption as discrete recursion yields area-law entropy with logarithmic corrections whose coefficients depend on spacetime dimension and charge for Schwarzschild and Reissner-Nordström cases.
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The Science of the Einstein Telescope
The paper provides state-of-the-art predictions for the Einstein Telescope's impact on fundamental physics, cosmology, compact-object astrophysics, and multi-messenger astronomy across its proposed configurations.
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Testing the nature of dark compact objects: a status report
Current and future observations can test whether dark compact objects are Kerr black holes or exotic alternatives, with null results strengthening the black hole paradigm.
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Quasinormal modes of black holes: from astrophysics to string theory
This review surveys calculations and interpretations of quasinormal modes for black holes in astrophysics, higher dimensions, and holographic duals without presenting new results.