Results 71 to 80 of about 35,653 (272)

Exploring confinement in Anti-de Sitter space

Journal of High Energy Physics
We study Yang-Mills theory on four dimensional Anti-de Sitter space. The Dirichlet boundary condition cannot exist at arbitrarily large radius because it would give rise to colored asymptotic states in flat space.
Riccardo Ciccone, Fabiana De Cesare, Lorenzo Di Pietro, Marco Serone   +3 more
doaj   +1 more source

Field Theories on Null Manifolds

, 2020
We argue that generic field theories defined on null manifolds should have an emergent BMS or conformal Carrollian structure. We then focus on a simple interacting conformal Carrollian theory, viz. Carrollian scalar electrodynamics.
Bagchi, A., Basu, R., Mehra, A., Nandi, P.   +3 more
core   +2 more sources

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Anatomy of null contractions

Journal of High Energy Physics
We introduce null contractions of the Poincare and relativistic conformal algebras. The longitudinal null contraction involves writing the algebra in lightcone coordinates and contracting one of the null directions.
Arjun Bagchi, M Nachiketh, Pushkar Soni
doaj   +1 more source

Fermions in boundary conformal field theory: crossing symmetry and E-expansion

Journal of High Energy Physics, 2023
We use the equations of motion in combination with crossing symmetry to constrain the properties of interacting fermionic boundary conformal field theories.
Christopher P. Herzog, Vladimir Schaub
doaj   +1 more source

Newton-Hooke spacetimes, Hpp-waves and the cosmological constant

, 2003
We show explicitly how the Newton-Hooke groups act as symmetries of the equations of motion of non-relativistic cosmological models with a cosmological constant.
Aldrovandi R, Aldrovandi R, Bacry H, Bacry H, Blau M, Burdet G, C E Patricot, Calinon A, Derome J-R, Dmitriev N A, Dubois J-G, Duval C, Duval C, G W Gibbons, Gao Y-h, Gibbons G W, Inönü E, Lewis H R, Lewis H R, Lynden-Bell D, Peebles P J E, Perrin M, Plassman J, Schwarzschild K, Schwarzschild K   +24 more
core   +1 more source

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

Advanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi, Senwei Zeng, Runfa Zhao, Guangfu Wu, Zhi Liu, Tianhang Zhou, Chunming Xu, Jia Guo, Quan Xu, Yingchun Niu   +9 more
wiley   +1 more source

Fundamental Superstrings as Holograms [PDF]

, 2007
The worldsheet of a macroscopic fundamental superstring in the Green-Schwarz light-cone gauge is viewed as a possible boundary hologram of the near horizon region of a small black string.
A. Castro, A. Castro, A. Dabholkar, A. Dabholkar, A. Dabholkar, A. Dabholkar, A. Dabholkar, A. Dabholkar, A. Giveon, A. Giveon, A. Giveon, A. Pakman, A. Sen, A. Sen, A. Sen, A. Strominger, A. Strominger, A. Van Proeyen, Atish Dabholkar, B. Sahoo, C.V. Johnson, D. Friedan, D. Israel, D. Kutasov, D. Kutasov, D. Shih, E. Witten, F. Denef, G. Giribet, G. Lopes Cardoso, G. Lopes Cardoso, I. Kanitscheider, J. de Boer, J.M. Lapan, J.M. Maldacena, J.M. Maldacena, K. Hosomichi, M.B. Green, M.R. Gaberdiel, M.R. Gaberdiel, N. Iizuka, N. Seiberg, P. Kraus, P. Kraus, P. Kraus, P. Kraus, P. Kraus, R. Argurio, R. Britto-Pacumio, S. Carlip, S. Murthy, S. Murthy, Sameer Murthy, T. Jacobson, V. Hubeny   +54 more
core   +4 more sources

Polymer Infiltration Into SURMOF Channels Enables Hydrophobic and Solid‐Like Slippery Functional Thin Films

Advanced Functional Materials, EarlyView.
We report a polymer‐chain insertion strategy to fabricate pore‐threaded MOF thin films with precisely tuned surface chemistry and wettability. Grafting n‐alkane chains into the pillared layer Cu2(bdc)2(dabco) MOF thin film's vertical nanochannels enhances water stability, and induces hydrophobicity and lubricant‐free, solid‐like slippery behavior ...
Angana Borbora, Modan Liu, Hartmut Gliemann, Uttam Manna, Christof Wöll   +4 more
wiley   +1 more source

Conformal field theory with periodic time

Journal of High Energy Physics
It is shown that time-ordered correlation functions of a unitary CFT2 in 2D Minkowski space admit a single-valued, conformally-invariant extension to the Lorentzian signature torus provided that the S 1 × S 1 spatial and temporal radii are equal.
Walker Melton, Andrew Strominger
doaj   +1 more source