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Earlier Chicone, Latushkin and Montgomery-Smith [Comm Math Phys (1997)] haveshown that a fast dynamo in compact two-dimensional manifold can be supportedas long as its Riemannian curvature be negative. Recently Klebanov andMaldacena [Phys Today (2008)] showed that a similar flat spacetime embedding ofa 2D negative Riemannian hyperbolic embedding in 2+1-D space-time, is achievedby a coordinate transformation. This embedding is used here to obtain a flatspacetime embedding of a slow dynamo in Riemannian 2D compact manifold ofnegative constant curvature. In is shown that a slow dynamo appears in anti-deSitter space (AdS) Lorentz tori. This is in agreement with Bassett et al [PhysRev D (2001)] cosmic dynamo where suppression of resonance by universeexpansion slow dynamo action in comparison to preheating phases. Other exampleof flat embeddings, which keeps some resamblance with AdS slow dynamo, is givenby the embedding of Moebius strip [Shukurov, Stepanov, Sokoloff, PRE (2008)] inthe laboratory.

Slow dynamos in Lorentz tori Anti-de Sitter spacetime embedded in Riemann 2D-space