Nyd den ubegrĂŠnsede adgang til tusindvis af spĂŠndende e- og lydbĂžger - helt gratis
Fakta
Quantum gravity is a field of theoretical physics that aims to describe the gravitational force according to the principles of quantum mechanics.
General relativity, developed by Albert Einstein, describes gravity as the curvature of spacetime caused by mass and energy. It works extremely well at large scales, such as in predicting planetary orbits and the behavior of black holes. On the other hand, quantum mechanics deals with the fundamental behavior of particles at the smallest scales, such as atoms and subatomic particles. It incorporates principles like wave-particle duality, quantization, and uncertainty.
Despite their success, general relativity and quantum mechanics are fundamentally incompatible. General relativity treats gravity as a smooth, continuous field, while quantum mechanics relies on quantized fields and inherently probabilistic events. When attempting to describe situations where both quantum effects and strong gravitational effects are significant, such as in the vicinity of black holes or during the Big Bang, the theories conflict. Quantum gravity aims to unify these two frameworks.
Several approaches have been proposed to formulate a theory of quantum gravity. String theory proposes that fundamental particles are not point-like but instead one-dimensional "strings" that vibrate at different frequencies. This theory inherently includes gravity and attempts to unify all fundamental forces. Loop quantum gravity (LQG) focuses on quantizing spacetime itself, positing that spacetime has a discrete structure at the smallest scales and attempts to describe the quantum properties of spacetime directly, without relying on a background.
© 2024 Dedona Publishing (Lydbog): 9798882435126
Release date
Lydbog: 16. august 2024
Over 600.000 titler
Download og nyd titler offline
Eksklusive titler + Mofibo Originals
BĂžrnevenligt miljĂž (Kids Mode)
Det er nemt at opsige nÄr som helst
For dig som vil prĂžve Mofibo.
1 konto
20 timer/mÄned
Eksklusivt indhold hver uge
Fri lytning til podcasts
Gem ubrugt tid
Ingen binding
For dig som lytter og lĂŠser ofte.
1 konto
100 timer/mÄned
Eksklusivt indhold hver uge
Fri lytning til podcasts
Ingen binding
For dig som lytter og lĂŠser ubegrĂŠnset.
1 konto
UbegrĂŠnset adgang
Eksklusivt indhold hver uge
Fri lytning til podcasts
Ingen binding
For dig som Ăžnsker at dele historier med familien.
2-6 konti
100 timer/mÄned pr. konto
Fri lytning til podcasts
Kun 39 kr. pr. ekstra konto
Ingen binding
2 konti
179 kr. /mÄnedDansk
Danmark