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 …

Quantum physics has intrigued scientists and philosophers alike, because it challenges our
notions of reality and locality—concepts that we have grown to rely on in our macroscopic …

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 …

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 developing 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 …

Forty years after the discovery of Hawking radiation, its exact nature remains elusive. If
Hawking radiation does not carry any information out from the ever shrinking black hole, it …

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 …

We discuss effects of loss of coherence in low energy quantum systems caused by or related
to gravitation, referred to as gravitational decoherence. These effects, resulting from random …

Various approaches to Quantum Gravity (such as String Theory and Doubly Special
Relativity), as well as black hole physics predict a minimum measurable length, or a …

Schemes of gravitationally induced decoherence are being actively investigated as possible
mechanisms for the quantum-to-classical transition. Here, we introduce a decoherence …