Abstract We study runaway, kination-dominated epochs in string cosmology. We show how the apparent classical decompactification runaway of the volume modulus, described by a kination epoch in the 4-dimensional EFT, can be uplifted to a classical Kasner solution in 10d in which the non-compact dimensions collapse towards a Big Crunch. This can also be generalised for arbitrary spacetime and compactification dimensions. We conclude with some comments on how this picture is modified by quantum effects, and the need for both dynamical and kinematical Swampland constraints
We confront the problem of giving a fundamental definition to perturbative string theory in spacetim...
In the context of a cosmological string model describing the propagation of strings in a time-depend...
We study string gas dynamics in the early universe and seek to realize the Brandenberger - Vafa mech...
We examine the effect of perturbative string loops on the cosmological pre-big-bang evolution. We st...
We summarize our recent results of studying five-dimensional Kasner cosmologies in a time-dependent ...
Bianchi type IX, 'Mixmaster' universes are investigated in low-energyeffective -action str...
In this thesis we study the quantum cosmology of the string universe obtained by embedding the Rober...
The dynamics of warped/flux compactifications is studied, including warping effects, providing a fir...
We study some gravitational instanton solutions that offer a natural realization of the spontaneous ...
Motivated by the possibility of a finite theory of gravity provided by superstrings in ten space-tim...
We present a detailed review of the moduli stabilisation mechanism and possible cosmological implica...
International audienceRecently, many works have tried to realize cosmological accelerated expansion ...
In gravitational theories with extra dimensions, it is argued that the existence of a positive vacuu...
Exact string solutions are presented, where moduli fields are varying with time. They provide exampl...
We find cosmological solution corresponding to compactification of 10d supergravity on a warped coni...
We confront the problem of giving a fundamental definition to perturbative string theory in spacetim...
In the context of a cosmological string model describing the propagation of strings in a time-depend...
We study string gas dynamics in the early universe and seek to realize the Brandenberger - Vafa mech...
We examine the effect of perturbative string loops on the cosmological pre-big-bang evolution. We st...
We summarize our recent results of studying five-dimensional Kasner cosmologies in a time-dependent ...
Bianchi type IX, 'Mixmaster' universes are investigated in low-energyeffective -action str...
In this thesis we study the quantum cosmology of the string universe obtained by embedding the Rober...
The dynamics of warped/flux compactifications is studied, including warping effects, providing a fir...
We study some gravitational instanton solutions that offer a natural realization of the spontaneous ...
Motivated by the possibility of a finite theory of gravity provided by superstrings in ten space-tim...
We present a detailed review of the moduli stabilisation mechanism and possible cosmological implica...
International audienceRecently, many works have tried to realize cosmological accelerated expansion ...
In gravitational theories with extra dimensions, it is argued that the existence of a positive vacuu...
Exact string solutions are presented, where moduli fields are varying with time. They provide exampl...
We find cosmological solution corresponding to compactification of 10d supergravity on a warped coni...
We confront the problem of giving a fundamental definition to perturbative string theory in spacetim...
In the context of a cosmological string model describing the propagation of strings in a time-depend...
We study string gas dynamics in the early universe and seek to realize the Brandenberger - Vafa mech...