Basic Concepts of String Theory
- R. Blumenhagen, D. Lüst, S. Theisen
- Physics
- 3 October 2012
The Classical Bosonic String.- The Quantized Bosonic String.- Introduction to Conformal Field Theory.- Parametrization Ghosts and BRST Quantization.- String Perturbation Theory and One-Loop…
Lectures on string theory
- D. Lüst, S. Theisen
- Physics
- 1989
This book provides an introduction to string theory, at present one of the fastest-growing areas in theoretical high-energy physics. It introduces modern techniques and concepts, such as conformal…
The spacetime of double field theory: Review, remarks, and outlook
- O. Hohm, D. Lüst, B. Zwiebach
- Mathematics
- 11 September 2013
We review double field theory (DFT) with emphasis on the doubled spacetime and its generalized coordinate transformations, which unify diffeomorphisms and b‐field gauge transformations. We illustrate…
Non‐geometric fluxes in supergravity and double field theory
- D. Andriot, O. Hohm, M. Larfors, D. Lüst, P. Patalong
- Physics
- 9 April 2012
In this paper we propose ten‐dimensional realizations of the non‐geometric fluxes Q and R. In particular, they appear in the NSNS Lagrangian after performing a field redefinition that takes the form…
Gauge threshold corrections in intersecting brane world models
- D. Lüst, S. Stieberger
- Mathematics
- 27 February 2003
We calculate the one‐loop corrections to gauge couplings in N = 1 supersymmetric brane world models, which are realized in an type IIA orbifold/orientifold background with several stacks of D6 branes…
A ten-dimensional action for non-geometric fluxes
- D. Andriot, M. Larfors, D. Lüst, P. Patalong
- Mathematics, Physics
- 20 June 2011
The NSNS Lagrangian of ten-dimensional supergravity is rewritten via a change of field variables inspired by Generalized Complex Geometry. We obtain a new metric and dilaton, together with an anti…
Double field theory on group manifolds
- R. Blumenhagen, Falk Hassler, D. Lüst
- Physics
- 23 October 2014
A bstractA new version of double field theory (DFT) is derived for the exactly solvable background of an in general left-right asymmetric WZW model in the large level limit. This generalizes the…
T-duality and closed string non-commutative (doubled) geometry
- D. Lüst
- Mathematics
- 7 October 2010
We provide some evidence that closed string coordinates will become non-commutative turning on geometrical fluxes and/or H-field flux background in closed string compactifications. This is in analogy…
The effective theory of type IIA AdS4 compactifications on nilmanifolds and cosets
- C. Caviezel, P. Koerber, S. Körs, D. Lüst, D. Tsimpis, M. Zagermann
- Mathematics
- 23 June 2008
We consider string theory compactifications of the form AdS with orientifold six-planes, where is a six-dimensional compact space that is either a nilmanifold or a coset. For all known solutions of…
Black hole solutions in R2 gravity
- A. Kehagias, C. Kounnas, D. Lüst, A. Riotto
- Physics
- 14 February 2015
A bstractWe find static spherically symmetric solutions of scale invariant R2 gravity. The latter has been shown to be equivalent to General Relativity with a positive cosmological constant and a…
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