Results 41 to 50 of about 522,604 (195)

A topological kagome magnet in high entropy form

open access: yesCommunications Physics, 2022
Kagome materials have recently attracted significant attention due to their ability to house both topological and magnetic phases. Here, the authors report a high-entropy Kagome magnet that exhibits an anomalous Hall effect, indicating the nontrivial ...
Lujin Min   +8 more
doaj   +1 more source

The volume entropy of a surface decreases along the Ricci flow [PDF]

open access: yes, 2004
The volume entropy, h(g), of a compact Riemannian manifold (M,g) measures the growth rate of the volume of a ball of radius R in its universal cover.
Manning, Anthony, ANTHONY MANNING
core   +1 more source

Black hole attractors and the entropy function in four- and five-dimensional N=2 supergravity [PDF]

open access: yes, 2007
Extremal black holes in theories of gravity coupled to abelian gauge fields and neutral scalars, such as those arising in the low-energy description of compactifications of string theory on Calabi-Yau manifolds, exhibit the attractor phenomenon: on the ...
Perz, Jan
core   +1 more source

The Entropy of Co-Compact Open Covers

open access: yesEntropy, 2013
Co-compact entropy is introduced as an invariant of topological conjugation for perfect mappings defined on any Hausdorff space (compactness and metrizability are not necessarily required).
Steven Bourquin   +4 more
doaj   +1 more source

AdS-Schwarzschild-like black hole thermodynamics: Loop quantum gravity impact on topology and universality

open access: yesNuclear Physics B
This study investigates the thermodynamic topology of AdS-Schwarzschild-like black holes within the framework of Loop Quantum Gravity (LQG) by employing various non-extensive entropy formulations. These include Rényi entropy, Barrow entropy, LQG entropy,
Saeed Noori Gashti   +7 more
doaj   +1 more source

Subshifts on Infinite Alphabets and Their Entropy

open access: yesEntropy, 2020
We analyze symbolic dynamics to infinite alphabets by endowing the alphabet with the cofinite topology. The topological entropy is shown to be equal to the supremum of the growth rate of the complexity function with respect to finite subalphabets.
Sharwin Rezagholi
doaj   +1 more source

Entropy as a Topological Operad Derivation

open access: yesEntropy, 2021
We share a small connection between information theory, algebra, and topology—namely, a correspondence between Shannon entropy and derivations of the operad of topological simplices.
Tai-Danae Bradley
doaj   +1 more source

Bekenstein-Hawking entropy as topological entanglement entropy [PDF]

open access: yesJournal of High Energy Physics, 2013
15 pages, 3 figures; typos corrected, references ...
Mcgough, Lauren, Verlinde, Herman
openaire   +2 more sources

Topological entropy of DNA sequences [PDF]

open access: yesBioinformatics, 2011
Abstract Motivation: Topological entropy has been one of the most difficult to implement of all the entropy-theoretic notions. This is primarily due to finite sample effects and high-dimensionality problems. In particular, topological entropy has been implemented in previous literature to conclude that entropy of exons is higher than of ...
openaire   +3 more sources

On two notions of fuzzy topological entropy [PDF]

open access: yes, 2022
We explore the notion of fuzzy topological entropy when different definitions of fuzzy compactness are considered. We prove that the recent de finitions by Tok and by Uzzal Afsan and Basu are not the most appropriate since they always display zero ...
Kupka, Jiri   +1 more
core   +1 more source

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