Results 81 to 90 of about 95,064 (284)

S-duality in string gas cosmology [PDF]

Physics Letters B, 2007
We consider a toy cosmological model in string theory involving the winding and momentum modes of (m,n) strings, i.e. bound states of m fundamental and n D-strings. The model is invariant under S-duality provided that m and n are interchanged. The dilaton is naturally stabilized due to S-duality invariance, which offers a new mechanism of moduli fixing
Arapoglu, Savas, Karakci, Ata, Kaya, Ali
openaire   +4 more sources

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Scalable Task Planning via Large Language Models and Structured World Representations

Advanced Robotics Research, EarlyView.
This work efficiently combines graph‐based world representations with the commonsense knowledge in Large Language Models to enhance planning techniques for the large‐scale environments that modern robots will need to face. Planning methods often struggle with computational intractability when solving task‐level problems in large‐scale environments ...
Rodrigo Pérez‐Dattari, Zhaoting Li, Robert Babuška, Jens Kober, Cosimo Della Santina   +4 more
wiley   +1 more source

The exceptional sigma model

Journal of High Energy Physics, 2018
We detail the construction of the exceptional sigma model, which describes a string propagating in the “extended spacetime” of exceptional field theory. This is to U-duality as the doubled sigma model is to T-duality. Symmetry specifies the Weylinvariant
Alex S. Arvanitakis, Chris D. A. Blair
doaj   +1 more source

DUALITY SYMMETRY GROUP OF TWO DIMENSIONAL HETEROTIC STRING THEORY [PDF]

, 1995
The equations of motion of the massless sector of the two dimensional string theory, obtained by compactifying the heterotic string theory on an eight dimensional torus, is known to have an affine o(8,24) symmetry algebra generating an O(8,24) loop group.
Ashoke Sen, Bakas, Belinskii, Belinskii, Binetruy, Breitenlohner, Breitenlohner, Brezin, Ceresole, Devchand, Dolan, Dolan, Duff, Duff, Ferrara, Font, Gauntlett, Geroch, Giveon, Giveon, Giveon, Goddard, Hassan, Hauser, Julia, Julia, Kalara, Kinnersley, Kinnersley, Kinnersley, Kinnersley, Klemm, Luscher, Luscher, Maharanaand, Maison, Maison, Marcus, Montonen, Nicolai, Nicolai, Osborn, Pohlmeyer, Rey, Rocek, Schwarz, Seiberg, Seiberg, Seiberg, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Shapere, Terentev, Ueno, Wu   +59 more
core   +3 more sources

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Advanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat, Laurie O'Neill, Léo Pio‐Lopez, Megan M. Sperry, Patrick Erickson, Tiffany Lin, Michael Levin   +6 more
wiley   +1 more source

U-duality and Intersecting D-branes [PDF]

, 1995
Spectrum of elementary string states in type II string theory compactified on a torus contains short multiplets which are invariant under only one quarter of the space-time supersymmetry generators.
Sen, Ashoke
core   +2 more sources

A Tac1‐Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia

Advanced Science, EarlyView.
A critical TG‐Sp5CTac1‐PBNTac1 pathway drives trigeminal neuropathic pain (TNP). Tac1‐expressing parabrachial nucleus (PBNTac1) neurons exhibit heightened responses to innocuous stimuli in TNP, and chemogenetic inhibition of these neurons effectively prevents TNP development.
Liting Sun, Jia‐Jia Wang, Xiang‐Yu Li, Xin‐Yi Lin, Juan Li, Qiu‐Tong Yu, Zi‐Han Wang, Xue‐Ping Gao, Lei Jin, Wei‐Ke Li, Tian‐Lin Cheng, Juan Deng   +11 more
wiley   +1 more source

Strings and membranes from $\mathcal{A}$-theory five brane

SciPost Physics
The $\mathcal{A}$-theory takes U-duality symmetry as a guiding principle, with the SL(5) U-duality symmetry being described as the world-volume theory of a 5-brane.
Machiko Hatsuda, Ondřej Hulík, William D. Linch, Warren D. Siegel, Di Wang, Yu-Ping Wang
doaj   +1 more source

T-duality in the string theory effective action with a string source

, 2001
We consider the T-duality transformations of the low-energy quantum string theory effective action in the presence of classical fundamental string source and demonstrate explicitly that T-duality still holds.Comment: 11 pages, Latex.
Nurmagambetov, Alexei
core   +1 more source