Results 101 to 110 of about 8,564,340 (227)
Bilinear Fronsdal currents in the AdS4 higher-spin theory
Journal of High Energy PhysicsWe analyse higher-spin theory with general coupling constant η at the second order, focusing on the gauge non-invariant vertices Υ(ω, ω), Υ(Ω, ω, C) and Υ(ω, C), that are shown to generate nontrivial currents in the Fronsdal equations.
Yu. A. Tatarenko, M. A. Vasiliev
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Towards non-AdS holography in 3-dimensional higher spin gravity
, 2012 We take the first steps towards non-AdS holography in higher spin gravity. Namely, we propose a variational principle for generic 3-dimensional higher spin gravity that accommodates asymptotic backgrounds beyond AdS, like asymptotically Schrodinger ...
Grumiller, Daniel +2 more
core +1 more source
Advanced Robotics Research, EarlyView.This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska +2 more
wiley +1 more source
Waveguide Photoactuators: Materials, Fabrication, and Applications
Advanced Robotics Research, EarlyView.Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi +4 more
wiley +1 more source
Massive spin 3 and Metric-Affine Gravity
Journal of High Energy PhysicsSymmetric Metric-Affine Gravity is a theory of gravity with an independent non-metric connection, and zero torsion. It can be thought of as ordinary metric gravity coupled to a rank-3 tensor Q, symmetric in one pair of indices.
Roberto Percacci, Ergin Sezgin
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Limiting shifted homotopy in higher-spin theory and spin-locality
Journal of High Energy Physics, 2019 Higher-spin vertices containing up to quintic interactions at the LagTangian level are explicitly calculated in the one-form sector of the non-linear unfolded higher-spin equations using a 𝛽 →-∞-shifted contracting homotopy introduced in the paper.
V.E. Didenko +3 more
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On amplitudes in chiral higher spin gravity
Journal of High Energy PhysicsA bstract We extract cubic interactions from the covariant equations of motion of Chiral Higher Spin Gravity and compute the corresponding amplitudes. These amplitudes are found to agree with earlier results obtained in the light-cone gauge.
openaire +2 more sources
Higher Spin Gravity and Exact Holography [PDF]
Proceedings of Proceedings of the Corfu Summer Institute 2012 — PoS(Corfu2012), 2013 24 pages, 2 figures; Proceedings of the XVIII European Workshop on String Theory, Corfu, Greece, September 19 - 27, 2012; v2: minor changes, two references ...
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A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine
Advanced Robotics Research, EarlyView.This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff +4 more
wiley +1 more source
Partially-massless higher spin algebras in four dimensions
Journal of High Energy PhysicsWe propose a realisation of partially-massless higher spin algebras in four dimensions in terms of bosonic and fermionic oscillators, using Howe duality between sp(4, ℝ) ≅ so(2, 3) and osp(1|2(ℓ − 1), ℝ).
Thomas Basile, Shailesh Dhasmana
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