This article reviews the present status of the spin-foam approach to the quantization of
gravity. Special attention is payed to the pedagogical presentation of the recently-introduced …

The present status of the quasi-local mass, energy-momentum and angular-momentum
constructions in general relativity is reviewed. First, the general ideas, concepts, and …

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With an aim towards understanding the time-dependence of entanglement entropy in
generic quantum field theories, we propose a covariant generalization of the holographic …

We describe early success in the evolution of binary black-hole spacetimes with a numerical
code based on a generalization of harmonic coordinates. Indications are that with sufficient …

Heavy ion collision experiments recreating the quark-gluon plasma that filled the nascent
universe have established that it is a nearly perfect liquid that flows with such minimal …

Beyond Einstein's Gravity is a graduate level introduction to extended theories of gravity and
cosmology, including variational principles, the weak-field limit, gravitational waves …

A bstract We propose an extension of the BMS group, which we refer to as Weyl BMS or
BMSW for short, that includes super-translations, local Weyl rescalings and arbitrary …

We compare the science capabilities of different eLISA mission designs, including four-link
(two-arm) and six-link (three-arm) configurations with different arm lengths, low-frequency …

This book introduces the modern field of 3+ 1 numerical relativity. The book has been written
in a way as to be as self-contained as possible, and only assumes a basic knowledge of …