A number of challenges to the standard Λ CDM model have been emerging during the past
few years as the accuracy of cosmological observations improves. In this review we discuss …

The existence of a fundamental scale, a lower bound to any output of a position
measurement, seems to be a model-independent feature of quantum gravity. In fact, different …

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 …

According to a number of arguments in quantum gravity, both model-dependent and model-
independent, Heisenberg's uncertainty principle is modified when approaching the Planck …

The existence of a minimal observable length has long been suggested in quantum gravity
as well as in string theory. In this context a generalized uncertainty relation has been derived …

In this manuscript, we investigate the properties of Casimir wormholes within the framework
of extended teleparallel gravity, incorporating the Generalized Uncertainty Principle. Both …

One of the main challenges in physics today is to merge quantum theory and the theory of
general relativity into a unified framework. Researchers are develo** various approaches …

We review the question of whether the fundamental laws of nature limit our ability to probe
arbitrarily short distances. First, we examine what insights can be gained from thought …

We propose uncertainty relations for the different coordinates of spacetime events, motivated
by Heisenberg's principle and by Einstein's theory of classical gravity. A model of Quantum …

Attempts to formulate a quantum theory of gravitation are collectively known as quantum
gravity. Various approaches to quantum gravity such as string theory and loop quantum …