We extend the Einstein-aether theory to include the Maxwell field in a nontrivial manner by taking into account its interaction with the time-like unit vector field characterizing the aether.
Quantum gravity was born as that branch of modern theoretical physics that tries to unify its guiding principles, i.e., quantum mechanics and general relativity. Nowadays it is providing new insight into the unification of all fundamental
What are the major challenges in unifying quantum mechanics and gravitation?The text identifies ultraviolet divergences in quantum gravity theories, necessitating advanced calculations in pure gravity, with major works cited being one-loop and two-loop calculations.How does the ADM formalism contribute to canonical quantum gravity?The ADM formalism reformulates Einstein's field equations into a first-order form, enabling a 3+1 decomposition that facilitates temporal evolution in general relativity.What evidence suggests gravitational interactions differ from other forces in physics?Bronstein noted that general relativity's constraints on mass density differ from quantum electrodynamics, necessitating potential abandon of Riemannian geometry in gravitational theories.
The Universal Device Detection library will parse any User Agent and detect the browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand and model. - GitHub - totpero/DeviceDetector.NET: The Universal…
In this work we elaborate on holographic description of the path-integral optimization in conformal field theories (CFT) using Hartle-Hawking wave functions in Anti-de Sitter spacetimes.
Kapitola 2 Obecná Teorie Relativtity - Fyzika Gravitace 2.1. Zrychlení a gravitace z hlediska speciální teorie relativity 2.2. Univerzálnost - základní vlastnost a klíč k pochopení podstaty gravitace 2.3.
Hikvision vyvinul celkové řešení, které kombinuje své 8K kamery s 8K NVR a displeji. Kamery Hikvision s rozlišením 8K pokrývají rozsáhlé oblasti a zachycují křišťálově čistý obraz.
Chytrý 8kanálový NVR PoE rekordér, ke kterému lze připojit až 8 12MP UHD 4K kamer. Kamery jsou napájeny přímo z NVR rekordéru jedním UTP kabelem. Pokročilé inteligentní funkce, detekce osob a vozidel.