Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GothenburgSE951 papers
- Centre National de la Recherche ScientifiqueFR805 papers
- Leiden UniversityNL590 papers
- Max Planck Institute for Radio AstronomyDE405 papers
- European Southern ObservatoryCL356 papers
- Center for Astrophysics Harvard & SmithsonianUS313 papers
- Leiden Observatory304 papers
- California Institute of TechnologyUS296 papers
- National Astronomical Observatory of JapanJP280 papers
- Observatoire de ParisFR268 papers
- Stockholm UniversitySE262 papers
- Centro de AstrobiologíaES252 papers
336 papers · 1 filter
The teleparallel complex
Martin Cederwall, Jakob Palmkvist
We formalise the teleparallel version of extended geometry (including gravity) by the introduction of a complex, the differential of which provides the linearised dynamics. The mai…
Extended geometry of magical supergravities
Guillaume Bossard, Martin Cederwall, Axel Kleinschmidt +3
We provide, through the framework of extended geometry, a geometrisation of the duality symmetries appearing in magical supergravities. A new ingredient is the general formulation…
Massive Theta Lifts
Marcus Berg, Daniel Persson
We use Poincare series for massive Maass-Jacobi forms to define a "massive theta lift", and apply it to the examples of the constant function and the modular invariant j-function,…
Teleparallelism in the algebraic approach to extended geometry
Martin Cederwall, Jakob Palmkvist
Extended geometry is based on an underlying tensor hierarchy algebra. We extend the previously considered structure of the local symmetries (the diffeomorphisms and thei…
Building spacetime from effective interactions between quantum fluctuations
Anna Karlsson
We describe how a model of effective interactions between quantum fluctuations under certain assumptions can be constructed in a way so that the large-scale limit gives an effectiv…
BPS Algebras in 2D String Theory
Sarah M. Harrison, Natalie M. Paquette, Daniel Persson +1
We discuss a set of heterotic and type II string theory compactifications to 1+1 dimensions that are characterized by factorized internal worldsheet CFTs of the form $V_1\otimes \b…
On the squashed seven-sphere operator spectrum
Simon Ekhammar, Bengt E. W. Nilsson
We derive major parts of the eigenvalue spectrum of the operators on the squashed seven-sphere that appear in the compactification of eleven-dimensional supergravity. These spectra…
Collective modes of polarizable holographic media in magnetic fields
Matteo Baggioli, Ulf Gran, Marcus Tornsö
We consider a neutral holographic plasma with dynamical electromagnetic interactions in a finite external magnetic field. The Coulomb interactions are introduced via mixed boundary…
BMS algebra from residual gauge invariance in light-cone gravity
Sudarshan Ananth, Lars Brink, Sucheta Majumdar
We analyze the residual gauge freedom in gravity, in four dimensions, in the light-cone gauge, in a formulation where unphysical fields are integrated out. By checking the invarian…
BMS algebra as an extension of the Poincaré symmetry in light-cone gravity
Sudarshan Ananth, Lars Brink, Sucheta Majumdar
We analyze possible local extensions of the Poincaré symmetry in light-cone gravity in four dimensions. We use a formalism where we represent the algebra on the two physical degree…
Fun with
Sarah M. Harrison, Natalie M. Paquette, Daniel Persson +1
We study some special features of , the holomorphic superconformal field theory (SCFT) given by 24 chiral free fermions. We construct eight different Lie superalgebr…
Newton-Hooke/Carrollian expansions of (A)dS and Chern-Simons gravity
Joaquim Gomis, Axel Kleinschmidt, Jakob Palmkvist +1
We construct finite- and infinite-dimensional non-relativistic extensions of the Newton-Hooke and Carroll (A)dS algebras using the algebra expansion method, starting from the (anti…
Transverse Collective Modes in Interacting Holographic Plasmas
Matteo Baggioli, Ulf Gran, Marcus Tornsö
We study in detail the transverse collective modes of simple holographic models in presence of electromagnetic Coulomb interactions. We render the Maxwell gauge field dynamical via…
Hadronic Strings -- A Revisit in the Shade of Moonshine
Lars Brink
When asked to write a contribution to the memorial volume for Peter Freund I went through my memory of the first time I met Peter. This was in 1971 when Dual Models were very popul…
Symmetries of post-Galilean expansions
Joaquim Gomis, Axel Kleinschmidt, Jakob Palmkvist +1
In this letter we study an infinite extension of the Galilei symmetry group in any dimension that can be thought of as a non-relativistic or post-Galilean expansion of the Poincare…
Holographic fundamental matter in multilayered media
Ulf Gran, Niko Jokela, Daniele Musso +2
We describe a strongly coupled layered system in 3+1 dimensions by means of a top-down D-brane construction. Adjoint matter is encoded in a large- stack of D3-branes, while fu…
Tensor hierarchy algebras and extended geometry II: Gauge structure and dynamics
Martin Cederwall, Jakob Palmkvist
The recent investigation of the gauge structure of extended geometry is generalised to situations when ancillary transformations appear in the commutator of two generalised diffeom…
Tensor hierarchy algebras and extended geometry I: Construction of the algebra
Martin Cederwall, Jakob Palmkvist
Tensor hierarchy algebras constitute a class of non-contragredient Lie superalgebras, whose finite-dimensional members are the "Cartan-type" Lie superalgebras in Kac's classificati…
Infinity-enhancing of Leibniz algebras
Sylvain Lavau, Jakob Palmkvist
We establish a correspondence between infinity-enhanced Leibniz algebras, recently introduced in order to encode tensor hierarchies, and differential graded Lie algebras, which hav…
Galilean free Lie algebras
Joaquim Gomis, Axel Kleinschmidt, Jakob Palmkvist
We construct free Lie algebras which, together with the algebra of spatial rotations, form infinite-dimensional extensions of finite-dimensional Galilei Maxwell algebras appearing…
Holographic Plasmon Relaxation with and without Broken Translations
Matteo Baggioli, Ulf Gran, Amadeo Jimenez Alba +2
We study the dynamics and the relaxation of bulk plasmons in strongly coupled and quantum critical systems using the holographic framework. We analyze the dispersion relation of th…
Building flat space-time from information exchange between quantum fluctuations
Anna Karlsson
We consider a hypothesis in which classical space-time emerges from information exchange (interactions) between quantum fluctuations in the gravity theory. In this picture, a line…
algebras for extended geometry
Martin Cederwall, Jakob Palmkvist
Extended geometry provides a unified framework for double geometry, exceptional geometry, etc., i.e., for the geometrisations of the string theory and M-theory dualities. In this t…
The role of singletons in compactifications
B. E. W. Nilsson, A. Padellaro, C. N. Pope
We derive the isometry irrep content of squashed seven-sphere compactifications of eleven-dimensional supergravity, i.e., the left-squashed () with and right…