## 6,872 Citations

The Wald–Zoupas prescription for asymptotic charges at null infinity in general relativity

- MathematicsClassical and Quantum Gravity
- 2022

We use the formalism developed by Wald and Zoupas to derive explicit covariant expressions for the charges and fluxes associated with the Bondi–Metzner–Sachs symmetries at null infinity in…

Curved non-relativistic spacetimes, Newtonian gravitation and massive matter

- Physics, Mathematics
- 2015

There is significant recent work on coupling matter to Newton-Cartan spacetimes with the aim of investigating certain condensed matter phenomena. To this end, one needs to have a completely general…

The origin of Weyl gauging in metric-aﬃne theories

- MathematicsClassical and Quantum Gravity
- 2022

In the ﬁrst part, we discuss the interplay between local scale invariance and metric-aﬃne degrees of freedom from few distinct points of view. We argue, rather generally, that the gauging of Weyl…

Novel supersymmetric extension of BMS symmetries at null infinity

- MathematicsPhysical Review D
- 2022

We show that we can combine the (complex, self-dual) BMS vector ﬁelds with the recently deﬁned BMS twistors to obtain a new supersymmetric extension of the BMS symmetries at null inﬁnity. We compare…

Conservation of asymptotic charges from past to future null infinity: Lorentz charges in general relativity

- Mathematics, PhysicsJournal of High Energy Physics
- 2022

Abstract
We show that the asymptotic charges associated with Lorentz symmetries on past and future null infinity match in the limit to spatial infinity in a class of asymptotically-flat spacetimes.…

The clustering of gamma-ray bursts in the Hercules–Corona Borealis Great Wall: the largest structure in the Universe?

- Physics
- 2020

The Hercules-Corona Borealis Great Wall is a statistically significant clustering of gamma-ray bursts around redshift 2. Motivated by recent theoretical results indicating that a maximal Universal…

Asymptotic symmetries and charges at spatial infinity in general relativity

- Mathematics, PhysicsClassical and Quantum Gravity
- 2020

We analyze the asymptotic symmetries and their associated charges at spatial infinity in four-dimensional asymptotically-flat spacetimes. We use the covariant formalism of Ashtekar and Hansen where…

Does time always slow down as gravity increases?

- PhysicsEuropean Journal of Physics
- 2020

We consider gravitational time dilation between stationary observers and present examples which contradict the statement that ‘time slows down as gravity increases’. We furthermore show that this…

Cosmic acceleration via space-time-matter theory

- Physics, Mathematics
- 2019

We consider the space-time-matter theory (STM) in a five-dimensional vacuum space-time with a generalized FLRW metric to investigate the late-time acceleration of the universe. For this purpose, we…

Buracos negros cosmológicos

- Physics
- 2018

Black hole-like spacetimes in a cosmological background are studied within the Einstein’s general relativity theory framework, in particular a mass varying generalization of the McVittie’s spacetime.…