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Open AccessCosmological time crystals from Einstein-cubic gravities
By including appropriate Riemann-cubic invariants, we find that the dynamics of classical time crystals can be straightforwardly realized in Einstein gravity on the FLRW metric. The time reflection symmetry is...
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Open Access\(\mathcal{P}\) –v criticality in gauged supergravities
AdS black holes show richer transition behaviors in extended phase space by assuming the cosmological constant and its conjugate quantity to behave like thermodynamic pressure and thermodynamic volume. We stud...
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Open AccessExact embeddings of JT gravity in strings and M-theory
We show that two-dimensional JT gravity, the holographic dual of the IR fixed point of the SYK model, can be obtained from the consistent Kaluza–Klein reduction of a class of EMD theories in general D dimensions....
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Open AccessGödel universe from string theory
The Gödel universe is a direct product of a line and a three-dimensional spacetime we call G \(_\alpha \) ...