Teleparallel gravity (TG) has significantly increased in popularity in recent decades, bringing
attention to Einstein's other theory of gravity. In this Review, we give a comprehensive …

We review the paradigm of holographic dark energy (HDE), which arises from a theoretical
attempt of applying the holographic principle (HP) to the dark energy (DE) problem. Making …

Recent theoretical progress indicates that spacetime and gravity emerge together from the
entanglement structure of an underlying microscopic theory. These ideas are best …

Computational complexity is essential to understanding the properties of black hole
horizons. The problem of Alice creating a firewall behind the horizon of Bob's black hole is a …

A wealth of astronomical data indicate the presence of mass discrepancies in the Universe.
The motions observed in a variety of classes of extragalactic systems exceed what can be …

In this paper, we report on exact charged black hole solutions in symmergent gravity with
Maxwell field. Symmergent gravity induces the gravitational constant G, quadratic curvature …

Around the globe several observatories are seeking the first direct detection of gravitational
waves (GWs). These waves are predicted by Einstein's general theory of relativity and are …

Technological advances in controlling and manipulating fluids have enabled the
experimental realization of acoustic analogues of gravitational black holes. A flowing fluid …

Recent advances in cooling, control, and measurement of mechanical systems in the
quantum regime have opened the possibility of the first direct observation of quantum …

A bstract We analyse particle species and the species scale in quantum gravity from a
thermodynamic perspective. In close analogy to black hole thermodynamics, we propose …