Št. zadetkov: 40
Video in druga učna gradiva
Oznake:
physics;astronomy
String theory, as the prime candidate for quantum unification of particle physics and gravity, sheds light on important fundamental questions of theoretical physics such as the microscopic structure of black holes and the geometric origin of particle physics. We review these developments, such as th ...
Leto:
2017
Vir:
videolectures.net
Izvirni znanstveni članek
Oznake:
F-Theory;String Duality;Superstrings;Heterotic Strings;M-Theory;
We study aspects of heterotic/F-theory duality for compactifications with Abelian gauge symmetries. We consider F-theory on general Calabi-Yau manifolds with a rank one Mordell-Weil group of rational sections. By rigorously performing the stable degeneration limit in a class of toric models, we deri ...
Leto:
2016
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Izvirni znanstveni članek
Oznake:
2D gravity;AdS-CFT correspondence;black holes;space-time symmetries;
We construct the holographic dictionary for both running and constant dilaton solutions of the two dimensional Einstein-Maxwell-Dilaton theory that is obtained by a circle reduction from Einstein-Hilbert gravity with negative cosmological constant in three dimensions. This specific model ensures tha ...
Leto:
2016
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Izvirni znanstveni članek
Oznake:
black holes;string theory;conformal field models;string duality;Kvantna logika;Fizika elementarnih delcev;
We analyze the general black hole solutions to the four dimensional STU model recently constructed by Chow and Compere. We define a dilute gas limit where the black holes can be interpreted as excited states of an extremal ground state. In this limit we express the black hole entropy and the excitat ...
Leto:
2014
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Izvirni znanstveni članek
Oznake:
black holes;string theory;conformal field models;string duality;Kvantna logika;Fizika elementarnih delcev;
Wu black hole is the most general solution of maximally supersymmetric gauged supergravity in D=5, containing U(1)(3) gauge symmetry. We study the separability of the massless Klein-Gordon equation and probe its singularities for a general stationary, axisymmetric metric with orthogonal transitivity ...
Leto:
2014
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Izvirni znanstveni članek
Oznake:
quantum fields of spacetime;supergravity;
We study the separability of the Dirac equation in the background of four dimensional charged rotating asymptotically flat black hole solution of supergravity and the low energy string theory known as STU black hole. In particular, we analyze in detail the separability conditions in the pairwise equ ...
Leto:
2023
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Izvirni znanstveni članek
Oznake:
discrete symmetries;F-theory;string duality;superstrings;heterotic strings;Kvantna logika;Fizika elementarnih delcev;
We study aspects of Heterotic/F-theory duality for compactifications with Abelian discrete gauge symmetries. We consider F-theory compactifications on genus-one fibered Calabi-Yau manifolds with n-sections, associated with the Tate-Shafarevich group Z(n). Such models are obtained by studying first a ...
Leto:
2017
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Izvirni znanstveni članek
Oznake:
astrofizika;
In the largest, currently known, class of one quadrillion globally consistent F-theory Standard Models with gauge coupling unification and no chiral exotics, the vectorlike spectra are counted by cohomologies of root bundles. In this work, we apply a previously proposed method to identify toric base ...
Leto:
2021
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Polemika, diskusijski prispevek
Oznake:
Kvantna logika;Fizika elementarnih delcev;Popravki;
We compute the entanglement entropy of minimally coupled scalar fields on subtracted geometry black hole backgrounds, focusing on the logarithmic corrections. We notice that matching between the entanglement entropy of original black holes and their subtracted counterparts is only at the order of th ...
Leto:
2015
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Izvirni znanstveni članek
Oznake:
supergravity theories;supersymmetric strings;quantum gravity constraints;
We argue for the quantum-gravitational inconsistency of certain 6D N ¼ ð1; 0Þ supergravity theories, whose anomaly-free gauge algebra g and hypermultiplet spectrum M were observed by Raghuram et al. [J. High Energy Phys. 07 (2021) 048] to be realizable only as part of a larger gauge sector ðg0 ⊃ g; ...
Leto:
2022
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)