13.7 Nonrelativistic string theory

Section NG covers noncommutative geometry, which is the most promising candidate for quantum spacetime within string theory. Here, we will discuss alternative quantum spacetime proposals inspired by string theory. \subsubsection{Stringy differential geometry} ^[1]<ol><li>Jeon:2011cn</li></ol> \subsubsection{Modular spacetime and metastring theory} ^[2]<ol><li>Freidel:2017xsi</li></ol>

\subsubsection{Generalised (Riemannian) geometry} ^[3]<ol><li>Hitchin:2010qz</li><li>Cavalcanti:2011wu</li><li>Cavalcanti</li><li>Gualtieri</li><li>Gualtieri:2003dx</li><li>Tsimpis:2016bbq</li></ol> \subsubsection{Generalised Cartan Geometry} ^[4]<ol><li>Hassler:2024hgq</li></ol>

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