Results 101 to 110 of about 423,687 (279)

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Exact 4-point Scattering Amplitude of the Superconformal Schrodinger Chern-Simons Theory

, 2012
We consider the non-relativistic superconformal U(N) X U(N) Chern-Simons theory with level (k,-k) possessing fourteen supersymmetries. We obtain an exact four-point scattering amplitude of the theory to all orders in 1/N and 1/k and prove that the ...
C. Kim, D. Bak, D. Bak, D. T. Son, Dongsu Bak, E. O. Colgain, G. Amelino-Camelia, J. A. Minahan, J. Gomis, K. Hosomichi, K.-M. Lee, O. Aharony, R. Jackiw, S. J. Kim, S. N. M. Ruijsenaars, Sangnam Park, Y. Aharonov, Y. Nakayama   +17 more
core   +1 more source

Geometrically Templated, Ultra‐Lightweight and High Strength Soap Films from Lyotropic Liquid Crystalline Graphene Oxide/Polymer Composites

Advanced Functional Materials, EarlyView.
Shellular materials form spontaneously by dip coating the primitive triply periodic minimal surface (TPMS) wireframe in an aqueous solution of lyotropic liquid crystalline graphene oxide (GO) nanosheets mixed with polymers. Regulated by surface tension, GO nanosheets align on the polymer soap film as the stress builds up during drying.
Yinding Chi, Yuchong Gao, Mostafa Akbari, Kun‐Hao Yu, Kun‐Yu Wang, Mohit Patel, Shouhong Fan, Ziyun Zhang, Masoud Akbarzadeh, Shu Yang   +9 more
wiley   +1 more source

On fine structure of strings: the universal correction to the Veneziano amplitude

Journal of High Energy Physics, 2018
We consider theories of weakly interacting higher spin particles in flat space-time. We focus on the four-point scattering amplitude at high energies and imaginary scattering angles. The leading asymptotic of the amplitude in this regime is universal and
Amit Sever, Alexander Zhiboedov
doaj   +1 more source

Null Polygonal Wilson Loops in Full N=4 Superspace

, 2012
We compute the one-loop expectation value of light-like polygonal Wilson loops in N=4 super-Yang-Mills theory in full superspace. When projecting to chiral superspace we recover the known results for tree-level next-to-maximally-helicity-violating (NMHV)
Beisert, Niklas, He, Song, Schwab, Burkhard U. W., Vergu, Cristian   +3 more
core   +1 more source

Tunable Coordination Number in Non‐Metal‐Introduced Copper Catalysts Enables High‐Performance Electrochemical CO2 Reduction to C2 Products

Advanced Functional Materials, EarlyView.
Copper catalysts introduced with different non‐metallic elements regulating the coordination number of Cu are prepared by magnetron sputtering. Reducing the Cu coordination number enhances C─C coupling and boosts C2+ product selectivity, by lowering the energy barrier for the *CO → *CHO conversion step. The optimized Si‐doped Cu catalyst achieves a C2+
Xiaoye Du, Bo Gao, Yixuan Yang, Young In Jo, Dan Qian, Chunhui Xiao, Shujiang Ding, Zhongxiao Song, Ki Tae Nam   +8 more
wiley   +1 more source

Four-graviton scattering to three loops in N = 8 $$ \mathcal{N}=8 $$ supergravity

Journal of High Energy Physics, 2019
We compute the three-loop scattering amplitude of four gravitons in N = 8 $$ \mathcal{N}=8 $$ supergravity. Our results are analytic formulae for a Laurent expansion of the amplitude in the regulator of dimensional regularisation.
J. M. Henn, B. Mistlberger
doaj   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

The ππ scattering amplitude at large N c

Journal of High Energy Physics
We study the scaling of meson-meson scattering amplitudes with the number of colors, N c. We use lattice calculations in a theory with N f = 4 degenerate flavors, with N c = 3 – 6 and pion mass M π ≈ 560 MeV.
Jorge Baeza-Ballesteros, Pilar Hernández, Fernando Romero-López   +2 more
doaj   +1 more source

Scattering Amplitude of Surface Plasmon Polariton Excited by a Finite Grating. [PDF]

Nanomaterials (Basel), 2023
Dyshlyuk AV, Proskurin A, Bogdanov AA, Vitrik OB.   +3 more
europepmc   +1 more source