In double-scaled SYK, state-adapted dressed chord operators change the emergent algebra from Type II1 to Type I∞ and restore purity of KM states, unlike generic operators.
Traversable wormholes in four dimensions
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An analytical traversable wormhole solution with positive cosmological constant is obtained via gravitational decoupling on the Ellis-Bronnikov metric, featuring a cosmological throat, verified flare-out conditions, null energy condition violation, and traversability constraints, though not yielding
Nucleated black holes in de Sitter space evaporate via standard Hawking radiation back to the empty vacuum, rendering nucleation a temporary fluctuation.
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.
citing papers explorer
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Emergent States and Algebras from the Double-Scaling limit of Pure States in SYK
In double-scaled SYK, state-adapted dressed chord operators change the emergent algebra from Type II1 to Type I∞ and restore purity of KM states, unlike generic operators.
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Analytical solution of traversable wormholes in the presence of positive cosmological constant
An analytical traversable wormhole solution with positive cosmological constant is obtained via gravitational decoupling on the Ellis-Bronnikov metric, featuring a cosmological throat, verified flare-out conditions, null energy condition violation, and traversability constraints, though not yielding
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The Fate of Nucleated Black Holes in de Sitter Quantum Gravity
Nucleated black holes in de Sitter space evaporate via standard Hawking radiation back to the empty vacuum, rendering nucleation a temporary fluctuation.
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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.