We review recent developments on nonrelativistic string theory. In flat spacetime, the theory
is defined by a two-dimensional relativistic quantum field theory with nonrelativistic global …

We review both the kinematics and dynamics of non-lorentzian theories and their associated
geometries. First, we introduce non-lorentzian kinematical spacetimes and their symmetry …

A bstract Nonrelativistic string theory in flat spacetime is described by a two-dimensional
quantum field theory with a nonrelativistic global symmetry acting on the worldsheet fields …

Nonrelativistic string theory is described by a sigma model with a relativistic worldsheet and
a nonrelativistic target spacetime geometry, that is called string Newton–Cartan geometry. In …

A bstract We discuss a particular non-relativistic limit of NS-NS gravity that can be taken at
the level of the action and equations of motion, without imposing any geometric constraints …

A bstract We revisit the formulation of non-relativistic (NR) string theory and its target space
geometry. We obtain a new formulation in which the geometry contains a two-form field that …

We show how the Newton–Cartan formulation of Newtonian gravity can be obtained from
gauging the Bargmann algebra, ie the centrally extended Galilean algebra. In this gauging …

A bstract We further develop the string 1/c 2 expansion of closed bosonic string theory,
where c is the speed of light. The expansion will be performed up to and including the next …

A bstract Nonrelativistic string theory is a unitary, ultraviolet finite quantum gravity theory with
a nonrelativistic string spectrum. The vertex operators of the worldsheet theory determine the …

We construct a'stringy'version of Newton–Cartan gravity in which the concept of a Galilean
observer plays a central role. We present both the geodesic equations of motion for a …