Results 91 to 100 of about 102,660 (285)

Conformal bootstrap in momentum space at finite volume

Journal of High Energy Physics, 2023
In this paper, we Fourier transform the Wightman function concerning energy and angular momentum on the S D−1 spatial slice in radial quantization in D = 2, 3 dimensions.
Kanade Nishikawa
doaj   +1 more source

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

Advanced Functional Materials, EarlyView.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula, Rosa M. Espinosa‐Marzal   +1 more
wiley   +1 more source

Conformal differential operator in embedding space and its applications

Journal of High Energy Physics, 2019
We develop techniques useful for obtaining conformal blocks in embedding space. We construct a unique differential operator in embedding space and use it to construct a function that will be an important ingredient in assembling conformal blocks. We show
Jean-François Fortin, Witold Skiba
doaj   +1 more source

Dispersion relation for CFT four-point functions

Journal of High Energy Physics, 2020
We present a dispersion relation in conformal field theory which expresses the four point function as an integral over its single discontinuity. Exploiting the analytic properties of the OPE and crossing symmetry of the correlator, we show that in ...
Agnese Bissi, Parijat Dey, Tobias Hansen
doaj   +1 more source

Magic fermions: Carroll and flat bands

Journal of High Energy Physics, 2023
The Carroll algebra is constructed as the c → 0 limit of the Poincare algebra and is associated to symmetries on generic null surfaces. In this paper, we begin investigations of Carrollian fermions or fermions defined on generic null surfaces. Due to the
Arjun Bagchi, Aritra Banerjee, Rudranil Basu, Minhajul Islam, Saikat Mondal   +4 more
doaj   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

New Realisations of Minimal Models and the Structure of W-Strings

, 1993
The quantization of a free boson whose momentum satisfies a cubic constraint leads to a $c=\ha$ conformal field theory with a BRST symmetry. The theory also has a $W_\infty $ symmetry in which all the generators except the stress-tensor are BRST-exact ...
Batalin, Batalin, Bergshoeff, Bilal, C.M. Hull, Das, Das, Dotsenko, Dotsenko, Felder, Hull, Hull, Hull, Hull, Hull, Hull, Lu, Lu, Lu, Pope, Pope, Pope, Pope, Rama, Romans, Schoutens, Schoutens, Schoutens, Thierry-Mieg, Thorn, Thorn, Thorn, Witten, Zamolodchikov   +33 more
core   +2 more sources

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source

A new handle on three-point coefficients: OPE asymptotics from genus two modular invariance

Journal of High Energy Physics, 2017
We derive an asymptotic formula for operator product expansion coefficients of heavy operators in two dimensional conformal field theory. This follows from modular invariance of the genus two partition function, and generalises the asymptotic formula for
John Cardy, Alexander Maloney, Henry Maxfield   +2 more
doaj   +1 more source

The N $$ \mathcal{N} $$ = 2 supersymmetric w 1+∞ symmetry in the two-dimensional SYK models

Journal of High Energy Physics, 2022
We identify the rank (q syk + 1) of the interaction of the two-dimensional N $$ \mathcal{N} $$ = (2, 2) SYK model with the deformation parameter λ in the Bergshoeff, de Wit and Vasiliev (in 1991)’s linear W ∞ [λ] algebra via λ = 1 2 q syk + 1 $$ \lambda =
Changhyun Ahn
doaj   +1 more source