115 citations · 672 across the 18 of their papers we have counts for
18 papers
The Energy-Momentum-News Complex near Future Null Infinity
Jelle Hartong, Emil Have, Vijay Nenmeli +1
We study asymptotically flat vacuum solutions of general relativity in three and four dimensions, with an emphasis on the geometric structures that emerge near null infinity. We co…
Boundary Energy-Momentum Tensors for Asymptotically Flat Spacetimes
Jelle Hartong, Emil Have, Vijay Nenmeli +1
We consider 3D and 4D asymptotically flat spacetimes near future null infinity endowed with the most general allowed Carroll geometry. We define a boundary energy-momentum tensor b…
Mixmasters in Wonderland: Chaotic dynamics from Carroll limits of gravity
Gerben Oling, Juan F. Pedraza
We demonstrate that the Carroll limit of general relativity coupled to matter captures the chaotic mixmaster dynamics of near-singularity limits. Zooming in on the behavior of gene…
Exact approaches on the string worldsheet
Saskia Demulder, Sibylle Driezen, Bob Knighton +5
We review different exact approaches to string theory. In the context of the Green-Schwarz superstring, we discuss the action in curved backgrounds and its supercoset formulation,…
Setting the connection free in the Galilei and Carroll expansions of gravity
Jørgen Musaeus, Niels A. Obers, Gerben Oling
We obtain a Palatini-type formulation for the Galilei and Carroll expansions of general relativity, where the connection is promoted to a variable. Known versions of these large an…
Longitudinal Galilean and Carrollian limits of non-relativistic strings
Leo Bidussi, Troels Harmark, Jelle Hartong +2
It is well known that one can take an infinite speed of light limit that gives rise to non-relativistic strings with a relativistic worldsheet sigma model but with a non-relativist…
Review on Non-Relativistic Gravity
Jelle Hartong, Niels A. Obers, Gerben Oling
We review the history of Newton-Cartan gravity with an emphasis on recent developments, including the covariant, off-shell large speed of light expansion of general relativity. Dep…
Conformal Carroll Scalars with Boosts
Stefano Baiguera, Gerben Oling, Watse Sybesma +1
We construct two distinct actions for scalar fields that are invariant under local Carroll boosts and Weyl transformations. Conformal Carroll field theories were recently argued to…
Aspects of Nonrelativistic Strings
Gerben Oling, Ziqi Yan
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…
Carroll Expansion of General Relativity
Dennis Hansen, Niels A. Obers, Gerben Oling +1
We study the small speed of light expansion of general relativity, utilizing the modern perspective on non-Lorentzian geometry. This is an expansion around the ultra-local Carroll…
Torsional string Newton-Cartan geometry for non-relativistic strings
Leo Bidussi, Troels Harmark, Jelle Hartong +2
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 co…
Non-Riemannian isometries from double field theory
Chris D. A. Blair, Gerben Oling, Jeong-Hyuck Park
We explore the notion of isometries in non-Riemannian geometries. Such geometries include and generalise the backgrounds of non-relativistic string theory, and they can be naturall…
Galilean first-order formulation for the non-relativistic expansion of general relativity
Dennis Hansen, Jelle Hartong, Niels A. Obers +1
We reformulate the Palatini action for general relativity (GR) in terms of moving frames that exhibit local Galilean covariance in a large speed of light expansion. For this, we ex…
Spin Matrix Theory String Backgrounds and Penrose Limits of AdS/CFT
Troels Harmark, Jelle Hartong, Niels A. Obers +1
Spin Matrix theory (SMT) limits provide a way to capture the dynamics of the AdS/CFT correspondence near BPS bounds. On the string theory side, these limits result in non-relativis…
Relating non-relativistic string theories
Troels Harmark, Jelle Hartong, Lorenzo Menculini +2
Non-relativistic string theories promise to provide simpler theories of quantum gravity as well as tractable limits of the AdS/CFT correspondence. However, several apparently disti…
Zooming in on AdS/CFT near a BPS Bound
Jelle Hartong, Yang Lei, Niels A. Obers +1
Any -dimensional CFT with a flavor symmetry, a BPS bound and an exactly marginal coupling admits a decoupling limit in which one zooms in on the spectrum close to the…
Generalized Toda Theory from Six Dimensions and the Conifold
Sam van Leuven, Gerben Oling
Recently, a physical derivation of the Alday-Gaiotto-Tachikawa correspondence has been put forward. A crucial role is played by the complex Chern-Simons theory arising in the 3d-3d…
Linear response of entanglement entropy from holography
Sagar F. Lokhande, Gerben W. J. Oling, Juan F. Pedraza
For time-independent excited states in conformal field theories, the entanglement entropy of small subsystems satisfies a `first law'-like relation, in which the change in entangle…