Results 41 to 50 of about 28,658 (246)
Traversable wormholes with charge and non-commutative geometry in the $f(Q)$ gravity [PDF]
, 2022 We consider modified symmetric teleparallel gravity (MSTEGR), in which gravitational Lagrangian is given by the arbitrary function of non-metricity scalar Q to study static and spherically symmetric charged traversable wormhole solutions with non ...
O. Sokoliuk +3 more
semanticscholar +1 more source
Traversable Wormholes in the Extended Teleparallel Theory of Gravity with Matter Coupling [PDF]
Fortschritte der Physik, 2021 This study explores the Gaussian and the Lorentzian distributed spherically symmetric wormhole solutions in the f(τ,T) gravity. The basic idea of the Gaussian and Lorentzian noncommutative geometries emerges as the physically acceptable and substantial ...
G. Mustafa +4 more
semanticscholar +1 more source
International Journal of Modern Physics D, 1999 A new framework is proposed for general dynamic wormholes, unifying them with black holes. Both are generically defined locally by outer trapping horizons, temporal for wormholes and spatial or null for black and white holes. Thus wormhole horizons are two-way traversible, while blackhole and whitehole horizons are only one-way traversible. It follows
openaire +3 more sources
Random statistics of OPE coefficients and Euclidean wormholes [PDF]
Classical and quantum gravity, 2020 We propose an ansatz for OPE coefficients in chaotic conformal field theories which generalizes the eigenstate thermalization hypothesis and describes any OPE coefficient involving heavy operators as a random variable with a Gaussian distribution. In two
Alexandre Belin, J. de Boer
semanticscholar +1 more source
Wormholes and holography: an introduction [PDF]
The European Physical Journal C, 2021 Wormholes are intriguing classical solutions in General Relativity, that have fascinated theoretical physicists for decades. In recent years, especially in Holography, gravitational Wormhole geometries have found a new life in many theoretical ideas ...
A. Kundu
semanticscholar +1 more source
Fitting Type Ia Supernova Data to a Cosmological Model Based on Einstein–Newcomb–De Sitter Space
Universe, 2023 Einstein–Newcomb–de Sitter (ENdS) space is de Sitter’s modification of spherical space used by Einstein in his first cosmological model paper published in 1917. The modification by de Sitter incorporated the topological identification of antipodal points
Vladimir N. Yershov
doaj +1 more source
Epicyclic Oscillations around Simpson–Visser Regular Black Holes and Wormholes [PDF]
Universe, 2021 We study epicyclic oscillatory motion along circular geodesics of the Simpson–Visser meta-geometry describing in a unique way regular black-bounce black holes and reflection-symmetric wormholes by using a length parameter l.
Z. Stuchl'ik, J. Vrba
semanticscholar +1 more source
The European Physical Journal C, 2019 AbstractCasimir energy is always indicated as a potential source to generate a traversable wormhole. It is also used to prove the existence of negative energy which can be built in the laboratory. However, in the scientific literature there is no trace of the consequences on the traversable wormhole itself.
openaire +4 more sources
Wormholes and black hole microstates in AdS/CFT [PDF]
Journal of High Energy Physics, 2021 It has long been known that the coarse-grained approximation to the black hole density of states can be computed using classical Euclidean gravity. In this work we argue for another entry in the dictionary between Euclidean gravity and black hole physics,
Jordan S. Cotler, K. Jensen
semanticscholar +1 more source
Replica wormholes for an evaporating 2D black hole [PDF]
, 2020 Quantum extremal islands reproduce the unitary Page curve of an evaporating black hole. This has been derived by including replica wormholes in the gravitational path integral, but for the transient, evaporating black holes most relevant to Hawking’s ...
Kanato Goto +2 more
semanticscholar +1 more source