The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

The Square Kilometre Array (SKA) is a planned large radio interferometer designed to
operate over a wide range of frequencies, and with an order of magnitude greater sensitivity …

Quantum-gravitational pressure can stop gravitational collapse and cause a bounce. We
observe that:(i) due to the huge time dilation, the process can last micro-seconds in local …

Quantum tunneling of a black hole into a white hole provides a model for the full life cycle of
a black hole. The white hole acts as a long-lived remnant, providing a possible resolution to …

Using the quasilocal properties alone we show that the area spectrum of a black hole
horizon must be discrete, independent of any specific quantum theory of gravity. The area …

Maximal accelerations are related to the existence of a minimal time for a given physical
system. Such a minimal time can be either an intrinsic timescale of the system or connected …

The recent research on the connection between gravity and thermodynamics suggests that
gravity could be an emergent phenomenon. Following this, Padmanabhan proposed a novel …

Understanding the quantum aspects of gravity is not only a matter of equations and
experiments. Gravity is intimately connected with the structure of space and time, and …

We study the effect of self-gravity on entropy by directly solving the 4D semi-classical
Einstein equation. In particular, we focus on whether the Bekenstein-Hawking formula holds …