Results 61 to 70 of about 53,013 (301)

DBI analysis of generalised permutation branes [PDF]

open access: yes, 2009
We investigate D-branes on the product GxG of two group manifolds described as Wess-Zumino-Novikov-Witten models. When the levels of the two groups coincide, it is well known that there exist permutation D-branes which are twisted by the automorphism ...
A Abouelsaood   +22 more
core   +2 more sources

Multiverse in Karch-Randall Braneworld

open access: yesJournal of High Energy Physics, 2023
In this paper, we propose a model based on wedge holography that can describe the multiverse. In wedge holography, we consider two gravitating baths, one of which has strong gravity and the other one has weak gravity.
Gopal Yadav
doaj   +1 more source

D-BRANE RECOIL MISLAYS INFORMATION [PDF]

open access: yesInternational Journal of Modern Physics A, 1998
We discuss the scattering of a light closed-string state off a D-brane, taking into account quantum recoil effects on the latter, which are described by a pair of logarithmic operators. The light particle and D-brane subsystems may each be described by a world sheet with an external source due to the interaction between them.
Ellis, J   +2 more
openaire   +3 more sources

Unitarity, D-brane dynamics and D-brane categories [PDF]

open access: yesJournal of High Energy Physics, 2001
This is a short nontechnical note summarizing the motivation and results of my recent work on D-brane categories. I also give a brief outline of how this framework can be applied to study the dynamics of topological D-branes and why this has a bearing on the homological mirror symmetry conjecture. This note can be read without any knowledge of category
openaire   +2 more sources

Supersymmetric D-branes on flux backgrounds

open access: yes, 2007
Several aspects concerning the physics of D-branes in Type II flux compactifications preserving minimal N=1 supersymmetry in four dimensions are considered. It is shown how these vacua are completely characterized in terms of properly defined generalized
Aspinwall   +18 more
core   +1 more source

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

open access: yesAdvanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang   +6 more
wiley   +1 more source

D-branes on asymmetric orbifolds [PDF]

open access: yesNuclear Physics B, 1999
We construct D-brane states on an asymmetric orbifold of type IIA on a four-torus, which is modded out by T-duality. We find explicit boundary states charged under the twisted sector gauge fields. Unlike other cases, the boundary states involve an explicit dependence on the twist fields.
Brunner, Ilka   +2 more
openaire   +3 more sources

Interactions involving D-branes [PDF]

open access: yes, 1996
We investigate some aspects of the spectrum of D-branes and their interactions with closed strings. As argued earlier, a collection of many D-strings behaves, at large dilaton values, as a single multiply wound string.
Das, Sumit R., Mathur, Samir D.
core   +2 more sources

Scalable Wheat Bran‐Algae Composites for Edible Electronics with Spray‐Coated Food‐Grade Conductive Inks

open access: yesAdvanced Electronic Materials, EarlyView.
A fully edible wheat bran–algae substrate is fabricated through scalable mould‐compression and spray‐coating, enabling robust, food‐grade platforms for sustainable electronics. A chitosan barrier improves water resistance and ink compatibility, while activated‐carbon conductive films form uniform electrodes with Ohmic behaviour.
Jaz Johari   +7 more
wiley   +1 more source

Anomalies and D-branes in the Dabholkar-Park background

open access: yesJournal of High Energy Physics
We consider D-branes in the Dabholkar-Park (DP) background, a 9d orientifold theory obtained by gauging symmetry in the type IIB string theory compactified on a circle.
Hiroki Wada, Satoshi Yamaguchi
doaj   +1 more source

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