Observers and the AdS/CFT correspondence

Abstract

The paper \cite{Dance0601} tentatively suggested a physical picture that might underlie string theories. The string parameters $\tau$ and ${\sigma }_i$ were interpreted as spacetime dimensions which a simple quantum mechanical observer can observe, while symmetries of the relevant observer states could limit the observability of other dimensions. The present paper extends the discussion by outlining how consideration of different observers, at least one of which is quantum mechanical, might provide insights into the nature of the AdS/CFT correspondence. It is suggested that such correspondences might arise as different forms of theories about the world as perceived by different observers.

12 pages

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