Zobrazeno 1 - 10
of 9 341
pro vyhledávání: '"A. Celio"'
Autor:
Crispim, T. M., Silva, Marcos V. de S., Alencar, G., Muniz, Celio R., Gómez, Diego Sáez-Chillón
In this work, we studied the characteristics of wormholes with multiple throats/anti-throats in the context of general relativity. The presence of these structures is verified through the minima and maxima in the area of these wormholes. Using embedd
Externí odkaz:
http://arxiv.org/abs/2412.05236
In this work, we investigate the existence of wormholes within the framework of Loop Quantum Cosmology, using isotropic dark matter as the source. We analyze three distinct density profiles and solve the modified gravity field equations alongside the
Externí odkaz:
http://arxiv.org/abs/2411.12063
We study the Activated Random Walk model on the one-dimensional ring, in the high density regime. We develop a toppling procedure that gradually builds an environment that can be used to show that activity will be sustained for a long time. This yiel
Externí odkaz:
http://arxiv.org/abs/2408.07049
In this paper, we obtain novel traversable, static, and spherically symmetric wormhole solutions, derived from the effective energy density and isotropic pressure resulting from the Casimir effect, corrected by the Generalized Uncertainty Principle (
Externí odkaz:
http://arxiv.org/abs/2406.08250
Autor:
Steinmetz, Raul, Kich, Victor A., Krever, Henrique, Mazzarolo, Joao D. Rigo, Grando, Ricardo B., Marini, Vinicius, Trois, Celio, Nieuwenhuizen, Ard
Deep learning, particularly Convolutional Neural Networks (CNNs), has gained significant attention for its effectiveness in computer vision, especially in agricultural tasks. Recent advancements in instance segmentation have improved image classifica
Externí odkaz:
http://arxiv.org/abs/2406.00313
Posidonia oceanica is a protected endemic seagrass of Mediterranean sea that fosters biodiversity, stores carbon, releases oxygen, and provides habitat to numerous sea organisms. Leveraging augmented research, we collected a comprehensive dataset of
Externí odkaz:
http://arxiv.org/abs/2402.14459
Autor:
Santos, Emanuel P., Silva, Rodrigo F., Maciel, Célio V. T., Luz, Daniel F., Silva, Pedro F. A.
Machine Learning and Deep Learning are computational tools that fall within the domain of artificial intelligence. In recent years, numerous research works have advanced the application of machine and deep learning in various fields, including optics
Externí odkaz:
http://arxiv.org/abs/2311.02004
Autor:
Larcher, Celio, Piau, Marcos, Finardi, Paulo, Gengo, Pedro, Esposito, Piero, Caridá, Vinicius
The strategy of training the model from scratch in a specific language or domain serves two essential purposes: i) enhancing performance in the particular linguistic or domain context, and ii) ensuring effective tokenization. The main limitation inhe
Externí odkaz:
http://arxiv.org/abs/2308.11878
Autor:
Hilário, Eloísa G., Habib, Tatiana, Maciel, Célio V. T., da Silva, Rodrigo F., Luz, Daniel F., Soares, Gabriela S., Caillier, Bruno, Jacinto, Carlos, Maia, Lauro J. Q., Caiut, José Maurício A., Moura, André L.
In the anti-Stokes excitation of trivalent rare-earth ions (RE3+), the excitation photons energy is smaller than that of a given absorption transition, and the energy mismatch can be compensated by phonons annihilation from the host lattice. Since th
Externí odkaz:
http://arxiv.org/abs/2306.11937
Publikováno v:
JCAP 09 (2023) 022
This work presents new three-dimensional traversable wormhole solutions sourced by the Casimir density and pressures related to the quantum vacuum fluctuations in Yang-Mills (Y-M) theory. We begin by analyzing the noninteracting Y-M Casimir wormholes
Externí odkaz:
http://arxiv.org/abs/2304.11131