Results 111 to 120 of about 1,140,863 (383)
STATIC CYLINDRICAL SYMMETRY AND CONFORMAL FLATNESS [PDF]
International Journal of Modern Physics D, 2005 We present the whole set of equations with regularity and matching conditions required for the description of physically meaningful static cylindrically symmmetric distributions of matter, smoothly matched to Levi-Civita vacuum spacetime. It is shown that the conformally flat solution with equal principal stresses represents an incompressible fluid ...
Herrera, L. +3 more
openaire +5 more sources
Direct Ink Writing of Conductive Hydrogels
Advanced Functional Materials, EarlyView.This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho +6 more
wiley +1 more source
Spontaneous conformal symmetry breaking in fishnet CFT
Physics Letters B, 2020 Quantum field theories with exact but spontaneously broken conformal invariance have an intriguing feature: their vacuum energy (cosmological constant) is equal to zero. Up to now, the only known ultraviolet complete theories where conformal symmetry can
Georgios K. Karananas +2 more
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Twistor spinors and extended conformal superalgebras [PDF]
J. Geom. Phys. 152 (2020) 103654, 2016 We show that the first-order symmetry operators of twistor spinors can be constructed from conformal Killing-Yano forms in conformally-flat backgrounds. We express the conditions on conformal Killing-Yano forms to obtain mutually commuting symmetry operators of twistor spinors.
arxiv +1 more source
Bioresorbable and Wireless Rechargeable Implanted Na‐ion Battery for Temporary Medical Devices
Advanced Functional Materials, EarlyView.An all‐solid‐state bioresorbable Na‐ion battery is developed, composed entirely of bio‐eliminable materials. In vivo and ex vivo tests confirmed harmless disintegration of this implanted battery. Lifetime of the implanted battery can be precisely controlled by adjusting the dissolvable encapsulation layer's thickness.
Vedi Kuyil Azhagan Muniraj +8 more
wiley +1 more source
Symmetries of Einstein-Weyl Manifolds with Boundary [PDF]
arXiv, 2020 Starting from a real analytic surface $\mathcal{M}$ with a real analytic conformal Cartan connection A. Bor\'owka constructed a minitwistor space of an asymptotically hyperbolic Einstein-Weyl manifold with $\mathcal{M}$ being the boundary. In this article, starting from a symmetry of conformal Cartan connection, we prove that symmetries of conformal ...
arxiv
Flow equation, conformal symmetry, and anti-de Sitter geometry [PDF]
, 2017 We argue that the Anti-de-Sitter (AdS) geometry in d+1 dimensions naturally emerges from an arbitrary conformal field theory in d dimensions using the free flow equation.
S. Aoki, Shuichiro Yokoyama
semanticscholar +1 more source
The lure of conformal symmetry
, 2018 The Clifford algebra, generated by the real (Majorana) gamma-matrices and by a hermitian gamma_5, gives room to the reductive Lie algebra u(2,2) of the conformal group extended by the u(1) helicity operator. Its unitary positive energy ladder representations, constructed by Gerhard Mack and the author 50 years ago, opened the way to a better ...
openaire +4 more sources
Advanced Functional Materials, EarlyView.This review highlights the potential of single‐atom catalysts in three key photocatalytic reactions: the hydrogen evolution reaction (HER), nitrogen reduction reaction for ammonia synthesis, and carbon dioxide reduction reaction (CO2RR) for chemical fuels.
Saad Mehmood +5 more
wiley +1 more source
On the symmetry of TT¯ deformed CFT
Nuclear Physics B, 2020 We propose a symmetry of TT¯ deformed 2D CFT, which preserves the trace relation. The deformed conformal killing equation is obtained. Once we consider the background metric runs with the deformation parameter μ, the deformation contributes an additional
Miao He, Yi-hong Gao
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