Results 131 to 140 of about 7,281 (260)

Weak gravity conjecture, black hole entropy, and modular invariance

open access: yesJournal of High Energy Physics, 2019
In recent literature, it has been argued that a mild form of the Weak Gravity Conjecture (WGC) is satisfied by wide classes of effective field theories in which higher-derivative corrections can be shown to shift the charge-to-mass ratios of extremal ...
Lars Aalsma, Alex Cole, Gary Shiu
doaj   +1 more source

Background Instability of Quintessence Model in Light of Entropy and Distance Conjecture

open access: yesFortschritte der Physik, Volume 74, Issue 6, June 2026.
ABSTRACT We apply the covariant entropy bound argument supporting the de Sitter swampland conjecture to the quintessence model, to find out the condition for the background to be unstable. More concretely, the background is unstable when the matter entropy given by the species number of the effective field theory increases more rapidly than the ...
Min‐Seok Seo
wiley   +1 more source

Large N limit of extremal non-supersymmetric black holes

open access: yes, 1998
The large N limit of extremal non-supersymmetric Type-I five-dimensional string black holes is studied from the point of view of D-branes. We find that the agreement between the D-brane and the black hole picture is due to an asymptotic restoration of ...
Manes, J.L.   +4 more
core   +1 more source

Building the blocks of Schwarzschild

open access: yesJournal of High Energy Physics
We demonstrate that the Schwarzschild black hole can be “resolved” into bound states of Reissner-Nordström black holes in four dimensions. These bound states closely resemble the Schwarzschild geometry from the asymptotic region up to an infinitesimal ...
Raphaël Dulac, Pierre Heidmann
doaj   +1 more source

Exploring Potential Mechanisms for the Initiation of Solifluction Patterns

open access: yesAGU Advances, Volume 7, Issue 3, June 2026.
Abstract Hillslopes in arctic regions commonly display large‐scale features—known as solifluction patterns—that form due to the exceedingly slow downhill movement of frost‐heaved soil. Here we use a combination of remote sensing data, linear stability analysis, numerical modeling, and review of a wide range of literature to evaluate several working ...
Rachel C. Glade   +4 more
wiley   +1 more source

Gauge theory, holography & black holes: Perspectives from string theory [PDF]

open access: yes, 2018
This thesis is based on research performed in the context of string- and M-theory. It can be divided into two main parts: the first concerns a very effective organizing principle, also known as the worldvolume theory of multiple M5 branes, for the study ...
van Leuven, S.P.G.
core  

Fire‐survival strategies of first‐year acacia seedlings

open access: yesJournal of Ecology, Volume 114, Issue 6, June 2026.
Acacia seedlings (11 of 12 species) acquire some ability to survive grass fires in their first year, either by resisting topkill with thickened stems and/or by regrowing from below‐ground stems. The results suggest that small differences in these fire‐survival strategies at this crucial life stage translate to large differences in savanna physiognomy ...
Arjun B. Potter   +5 more
wiley   +1 more source

Black hole thermodynamics from string theory [PDF]

open access: yesPhysics Letters B, 1994
In this note we consider a stringy description of black hole horizon. We start with a nonlinear sigma model defined on a two dimensional Euclidean surface with background Rindler metric. By solving the field equations, we show that to the leading order the Bekenstein-Hawking formula of black hole entropy can be produced.
openaire   +2 more sources

String/Gauge Duality and Penrose Limit [PDF]

open access: yes, 2003
Berenstein, Maldacena, and Nastase have recently discovered a particular limit of AdS/CFT correspondence where string theory in a plane wave background is dual to a sector of $mathcal N =4 SYM in a double scaling limit.
Park, Jongwon
core   +1 more source

Are there topological black-hole solitons in string theory? [PDF]

open access: yesGeneral Relativity and Gravitation, 1987
12 pages, TeX, requires phyzzx.tex, published in Gen. Rel. Grav.
openaire   +2 more sources

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