Results 51 to 60 of about 268,972 (205)

Gravity and the Quantum: Are they Reconcilable?

open access: yes, 2005
General relativity and quantum mechanics are conflicting theories. The seeds of discord are the fundamental principles on which these theories are grounded.
Aldrovandi, R.   +2 more
core   +2 more sources

A generalized quantum relative entropy

open access: yesAdvances in Mathematics of Communications, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Andrade, Luiza H. F.   +2 more
openaire   +3 more sources

Time in quantum gravity [PDF]

open access: yes, 2012
Quantum gravity--the marriage of quantum physics with general relativity--is bound to contain deep and important lessons for the nature of physical time.
Barbour   +34 more
core   +2 more sources

Why we need to quantise everything, including gravity

open access: yesnpj Quantum Information, 2017
Why we need to quantise everything, including gravity Quantum gravity—the theory that will merge quantum theory and general relativity—is yet to be found.
C. Marletto, V. Vedral
doaj   +1 more source

On the Inaccessibility of Time Machines

open access: yesUniverse, 2023
We will explain why time machines, although allowed in General Relativity, cannot be accessed by observers once we include quantum effects. Moreover, we will show that traversable wormholes cannot be turned into time machines without invoking the effects
Marija Tomašević
doaj   +1 more source

General relativistic effects in quantum interference of photons

open access: yes, 2012
Quantum mechanics and general relativity have been extensively and independently confirmed in many experiments. However, the interplay of the two theories has never been tested: all experiments that measured the influence of gravity on quantum systems ...
Brukner, Caslav   +4 more
core   +1 more source

The Value of Singularities [PDF]

open access: yes, 1995
We point out that spacetime singularities play a useful role in gravitational theories by eliminating unphysical solutions. In particular, we argue that any modification of general relativity which is completely nonsingular cannot have a stable ground ...
A. Ashtekar   +9 more
core   +2 more sources

On the assumptions leading to the information loss paradox

open access: yesJournal of High Energy Physics, 2021
The information loss paradox is usually stated as an incompatibility between general relativity and quantum mechanics. However, the assumptions leading to the problem are often overlooked and, in fact, a careful inspection of the main hypothesises ...
Luca Buoninfante   +2 more
doaj   +1 more source

The Fractal Quantum Gravity

open access: yesReports in Advances of Physical Sciences, 2023
Based on the smallest physical constant of the product of space interval, time interval, and energy, the fractal quantum gravity (FQG) theory has demonstrated that every particle or physical system consists of these smallest units in fractal structures ...
Shuming Li   +3 more
doaj   +1 more source

ON THE RUNNING OF THE COSMOLOGICAL CONSTANT IN QUANTUM GENERAL RELATIVITY [PDF]

open access: yes, 2009
We present arguments that show what the running of the cosmological constant means when quantum general relativity is formulated following the prescription developed by Feynman.
B. Ward
semanticscholar   +1 more source

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