48 citations · 124 across the 13 of their papers we have counts for
15 papers
Carroll-Weyl symmetries in flat holography
Arnaud Delfante, Chrysoula Markou
The degenerate geometry of a null boundary admits an enlarged local conformal freedom: in two dimensions, a Carrollian coframe allows two independent Weyl rescalings, one modulatin…
Closed string trajectories from a new "tiling"
Thomas Basile, Chrysoula Markou
Based on an efficient technology for the excavation of entire open string trajectories of physical states, we propose an algorithmic method of constructing the largely unknown clos…
Ultraviolet completion of Starobinsky inflation
Ignatios Antoniadis, Chrysoula Markou, Dimitri V. Nanopoulos
We construct an supergravity action whose bosonic part contains an arbitrary function of the scalar curvature, the so-called gravity. As in supergravity, it ca…
An introduction to string states and their interactions
Chrysoula Markou
The subject matter of these lecture notes is the open bosonic critical string, its perturbative spectrum and interactions. We begin with a brief review of classical string propagat…
On the deep string spectrum
Chrysoula Markou
These proceedings are based on the author's invited talk reviewing the original published work [1,2] of the author with collaborators. The subject matter is a new, covariant and ef…
On the deep superstring spectrum
Thomas Basile, Chrysoula Markou
We propose a covariant method of constructing entire trajectories of physical states in superstring theory in the critical dimension. It is inspired by a recently developed covaria…
An excursion into the string spectrum
Chrysoula Markou, Evgeny Skvortsov
We propose a covariant technique to excavate physical bosonic string states by entire trajectories rather than individually. The approach is based on Howe duality: the string's spa…
A stringy massive double copy
Dieter Lust, Chrysoula Markou, Pouria Mazloumi +1
We derive a massive double copy construction within string theory. To this end, we use massive vectors of the open string spectrum that appear in compactifications to four dimensio…
Aspects of compactification on a linear dilaton background
Ignatios Antoniadis, Chrysoula Markou, François Rondeau
We consider the most general Kaluza-Klein (KK) compactification on of a five dimensional () graviton-dilaton system, with a non-vanishing dilaton background…
Extracting Bigravity from String Theory
Dieter Lust, Chrysoula Markou, Pouria Mazloumi +1
The origin of the graviton from string theory is well understood: it corresponds to a massless state in closed string spectra, whose low-energy effective action, as extracted from…
Vierbein interactions with antisymmetric components
Chrysoula Markou, Felix J. Rudolph, Angnis Schmidt-May
In this work we propose a new gravitational setup formulated in terms of two interacting vierbein fields. The theory is the fully diffeomorphism and local Lorentz invariant extensi…
Gravity with antisymmetric components
Chrysoula Markou, Felix J. Rudolph, Angnis Schmidt-May
This work proposes a new gravitational theory formulated in terms of the vierbein field. The vierbein contains components which can be shifted by local Lorentz transformations and…
The effective supergravity of Little String Theory
Ignatios Antoniadis, Antonio Delgado, Chrysoula Markou +1
In this work we present the minimal supersymmetric extension of the five-dimensional dilaton-gravity theory that captures the main properties of the holographic dual of little stri…
Nonlinear Global Supersymmetry
Ignatios Antoniadis, Jean-Pierre Derendinger, Chrysoula Markou
We study the partial breaking of global supersymmetry, using a novel formalism that allows for the off-shell nonlinear realization of the broken supersymmetry, extendi…
The coupling of Non-linear Supersymmetry to Supergravity
Ignatios Antoniadis, Chrysoula Markou
We study the coupling of non-linear supersymmetry to supergravity. The goldstino nilpotent superfield of global supersymmetry coupled to supergravity is described by a geometric ac…