Results 81 to 90 of about 11,294 (222)

Tsallis $$\delta $$ δ -entropy in an accelerating BIon

European Physical Journal C: Particles and Fields, 2018
In this research, we consider thermodynamically the behaviour of an accelerating BIon and show that the entropy of this system has the form of Tsallis entropy.
Hossein Ghaforyan, Somayeh Shoorvazi, Alireza Sepehri, Majid Ebrahimzadeh   +3 more
doaj   +1 more source

Cosmology Due to Thermodynamics of Apparent Horizon

Annalen der Physik, Volume 537, Issue 11, November 2025.
Effective cosmological constant as a function of the Hubble rate H for different entropy parameters b. Figure shows the asymptotic of the effective cosmological constant. At H = 0 the effective cosmological constant vanishes. Abstract This study proposes new entropy of the apparent horizon Sh=(1/β)arctan(βSBH)$S_h=(1/\beta)\arctan (\beta S_{BH ...
S. I. Kruglov
wiley   +1 more source

Extensive Renyi Statistics from Non-Extensive Entropy

, 2004
We show that starting with either the non-extensive Tsallis entropy in Wang's formalism or the extensive Renyi entropy, it is possible to construct the equilibrium statistical mechanics with non-Gibbs canonical distribution functions.
A.S. Parvan, Abe, Abe, Abe, Abe, Abe, Abramowitz, Balescu, Botet, Gibbs, Gross, Huang, Jaynes, Lavagno, Martínez, Parvan, Prato, Rényi, T.S. Biró, Tsallis, Tsallis, Tsallis, Vives, Wang, Wang, Wang, Wang, Wehrl   +27 more
core   +1 more source

Inflation based on the Tsallis entropy

The European Physical Journal C
AbstractWe study the inflationary scenario in the Tsallis entropy-based cosmology. The Friedmann equations in this setup can be derived by using the first law of thermodynamics. To derive the relations of the power spectra of the scalar and tensor perturbations in this setup, we reconstruct an f(R) gravity model which is thermodynamically equivalent to
Teimoori, Zeinab, Rezazadeh, Kazem, Rostami, Abasat   +2 more
openaire   +3 more sources

Predicting Equilibrium Bed Morphology of Large‐Scale Meandering Rivers Using a Novel LES‐Trained Machine Learning Approach

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 10, October 2025.
Abstract Flood‐induced deformation of the bed topography of fluvial meandering rivers could lead to riverbank displacement, infrastructure failure, and the propagation of scour and deposition features. The ability to predict sediment transport in large‐scale meanders is, therefore, a critical requirement for tackling a host of environmental issues ...
Zexia Zhang, Mehrshad Gholami Anjiraki, Hossein Seyedzadeh, Fotis Sotiropoulos, Xiaolei Yang, Ali Khosronejad   +5 more
wiley   +1 more source

Preservers for the Tsallis Entropy of Convex Combinations of Density Operators

Advances in Mathematical Physics, 2018
Let H be a complex separable Hilbert space; we first characterize the unitary equivalence of two density operators by use of Tsallis entropy and then obtain the form of a surjective map on density operators preserving Tsallis entropy of convex ...
Xiaochun Fang, Yihui Lao
doaj   +1 more source

Searching for Universality of Turbulence in the Earth's Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Turbulence in space plasmas remains a fundamental challenge, and Earth's magnetosphere (MSP) offers a natural laboratory for its study. Using high‐resolution magnetic field data from the Magnetospheric Multiscale (MMS) mission, we extend a stochastic Markovian framework to analyze turbulence across 10 diverse magnetospheric regions, including ...
Dariusz Wójcik, Wiesław M. Macek
wiley   +1 more source

Long-range interactions, doubling measures and Tsallis entropy

, 2014
We present a path toward determining the statistical origin of the thermodynamic limit for systems with long-range interactions. We assume throughout that the systems under consideration have thermodynamic properties given by the Tsallis entropy. We rely
Kalogeropoulos, Nikos
core   +1 more source

Kumaraswamy Modified Kies Power Lomax Distribution: Properties, Actuarial Measures, and Applications

Engineering Reports, Volume 7, Issue 9, September 2025.
In this paper, we introduce a novel five‐parameter probability model integrating the features of the Kumaraswamy Modified Kies‐G family and the power Lomax distribution, offering improved flexibility in modeling real‐world data. The proposed model is named the Kumaraswamy Modified Kies power Lomax distribution, which captures a wide range of shapes ...
Potluri S. S. Swetha, Hanene Hamdani, Mohamed Nejib Ouertani, Vasili B. V. Nagarjuna, Suleman Nasiru, Mohammed Elgarhy   +5 more
wiley   +1 more source

A Proposed Novel Approach in Estimation of Unbiased Community Rarity Using the Locked Matrix and Tsallis Entropy

Forestist
The present study offers a new approach to measure unbiased rarity at the community level r q* . In this approach, the locked data matrix (matrix H) and the survey data matrix of the communities (matrix A) play the essential roles.
Kürşad Özkan
doaj   +1 more source