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Spacetime emergence from entanglement has long been presumed to beholographic, with emergence from quantum interactions in a boundary theory.Since that setup is difficult to extend to general spacetimes, it is imperativeto understand the key aspects of the map from entanglement to spacetime. Weconsider a scenario for spacetime emergence from quantum interactions directlyin the spacetime, where the effective spacetime theory emerges frominteractions similar to how fluid dynamics arises from molecule interactions.We show that this ansatz constitutes a working scenario for spacetime emergencein 2D, with explicit examples for AdS and dS spacetimes. Importantly, by basingthe emergence on interactions between quantum fluctuations that are present inthe spacetime, key aspects of the dynamics observed in gauge/gravity dualityanalyses can be retained, at the same time as the quantisation can be appliedto general spacetimes.

A scenario for AdS${}_2$ and dS${}_2$ emergence from quantum fluctuations