Articles with "string" as a keyword



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Initial value problem in string-inspired nonlocal field theory

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Published in 2022 at "Journal of High Energy Physics"

DOI: 10.1007/jhep01(2022)167

Abstract: We consider a nonlocal scalar field theory inspired by the tachyon action in open string field theory. The Lorentz-covariant action is characterized by a parameter ξ 2 that quantifies the amount of nonlocality. Restricting to… read more here.

Keywords: formulation; field; theory; initial value ... See more keywords

The EFT of large spin mesons

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep04(2025)049

Abstract: We use effective string theory to study mesons with large spin J in large Nc QCD as rotating open strings. In the first part of this work, we formulate a consistent effective field theory (EFT)… read more here.

Keywords: spectroscopy; large spin; string; eft large ... See more keywords

Quark masses and mixing in string-inspired models

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep06(2025)175

Abstract: We study a class of supersymmetric Froggatt-Nielsen (FN) models with multiple U(1) symmetries and Standard Model (SM) singlets inspired by heterotic string compactifications on Calabi-Yau threefolds. The string-theoretic origin imposes a particular charge pattern on… read more here.

Keywords: string inspired; mixing string; masses mixing; quark masses ... See more keywords

Spectrum of the open QCD flux tube and its effective string description I: 3d static potential in SU(N = 2, 3)

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Published in 2017 at "Journal of High Energy Physics"

DOI: 10.1007/jhep07(2017)008

Abstract: A bstractWe perform a high precision measurement of the static qq¯$$ q\overline{q} $$ potential in three-dimensional SU(N) gauge theory with N = 2, 3 and compare the results to the potential obtained from the effective… read more here.

Keywords: theory; effective string; analysis; flux tube ... See more keywords
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de Sitter in non-supersymmetric string theories: no-go theorems and brane-worlds

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Published in 2020 at "Journal of High Energy Physics"

DOI: 10.1007/jhep10(2020)108

Abstract: We study de Sitter configurations in ten-dimensional string models where supersymmetry is either absent or broken at the string scale. To this end, we derive expressions for the cosmological constant in general warped flux compactifications… read more here.

Keywords: non supersymmetric; sitter non; supersymmetric string; string theories ... See more keywords

Coupled dynamics of a viscoelastically supported infinite string and a number of discrete mechanical systems moving with uniform speed

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Published in 2018 at "Journal of Sound and Vibration"

DOI: 10.1016/j.jsv.2017.10.021

Abstract: Abstract The mutual interaction between a number of multi degrees of freedom mechanical systems moving with uniform speed along an infinite taut string supported by a viscoelastic layer has been studied using the substructure synthesis… read more here.

Keywords: systems moving; uniform speed; moving uniform; mechanical systems ... See more keywords

Synthesis and Magnetic Properties of a Dimerized Trinuclear Ni String Complex, [Ni6Cl2(dpa)8](I5)2·0.25I2 (dpa- = 2,2'-Dipyridylamide Anion).

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Published in 2021 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.1c02660

Abstract: Metal string complexes, linearly aligned transition metal arrays coordinated with the multidentate organic ligands, have gained much attention both in unique electronic/structural properties and in potential applications as conductive molecular nanowires. Here we report on… read more here.

Keywords: anion; dpa 25i2; ni6cl2 dpa; complex ni6cl2 ... See more keywords

Some Hooded crows (Corvus cornix) understand how a loose string works

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-99778-z

Abstract: In a loose-string task an out-of-reach tray baited with food can only be retrieved by simultaneously pulling on both ends of a string threaded through the loops on the tray. This task is used to… read more here.

Keywords: string task; hooded crows; string; loose string ... See more keywords

Kiselev black strings: the charged rotating solutions

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Published in 2025 at "Classical and Quantum Gravity"

DOI: 10.1088/1361-6382/add078

Abstract: We investigate the properties of a charged rotating black string immersed in a Kiselev anisotropic fluid in anti-de Sitter (AdS) spacetime. The Einstein–Maxwell equations with an anisotropic stress–energy tensor and cosmological constant are analyzed and… read more here.

Keywords: black string; strings charged; charged rotating; kiselev black ... See more keywords

Heterotic string field theory with cyclic $L_\infty$ structure

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Published in 2019 at "Progress of Theoretical and Experimental Physics"

DOI: 10.1093/ptep/ptz051

Abstract: We construct a complete heterotic string field theory that includes both the Neveu-Schwarz and Ramond sectors. We give a construction of general string products, which realizes a cyclic L-infinity structure and thus provides with a… read more here.

Keywords: field theory; string field; string; heterotic string ... See more keywords

A global cross-cultural analysis of string figures reveals evidence of deep transmission and innovation

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Published in 2024 at "Journal of the Royal Society Interface"

DOI: 10.1098/rsif.2024.0673

Abstract: Few cultural practices beyond language are as widespread as string figure games. Their global distribution and potential to yield insights into cultural transmission and cognition have long been noted. Yet, it remains unknown how or… read more here.

Keywords: transmission; string; transmission innovation; cross cultural ... See more keywords