Results 141 to 150 of about 34,458 (223)

Surprises in the ordinary: O(N) invariant surface defect in the ϵ-expansion

open access: yesJournal of High Energy Physics
We study an O(N) invariant surface defect in the Wilson-Fisher conformal field theory (CFT) in d = 4 – ϵ dimensions. This defect is defined by mass deformation on a two-dimensional surface that generates localized disorder and is conjectured to factorize
Oleksandr Diatlyk, Zimo Sun, Yifan Wang
doaj   +1 more source

Galilean Conformal and Superconformal Symmetries

open access: yes, 2011
Firstly we discuss briefly three different algebras named as nonrelativistic (NR) conformal: Schroedinger, Galilean conformal and infinite algebra of local NR conformal isometries. Further we shall consider in some detail Galilean conformal algebra (GCA)
A. Bagchi   +33 more
core   +1 more source

Covalent Organic Frameworks for Photocatalysis

open access: yesAdvanced Materials, EarlyView.
This review provides an overview of recent advances in covalent organic frameworks (COFs) for photocatalysis, focusing on sustainable energy applications like water splitting, hydrogen peroxide generation, and CO2 and N2 reduction. It discusses design principles, structure‐function relationships, challenges in COF photocatalysis, and strategies to ...
Bikash Mishra   +6 more
wiley   +1 more source

BMS/GCA Redux: Towards Flatspace Holography from Non-Relativistic Symmetries

open access: yes, 2012
The asymptotic group of symmetries at null infinity of flat spacetimes in three and four dimensions is the infinite dimensional Bondi-Metzner-Sachs (BMS) group.
Bagchi, Arjun, Fareghbal, Reza
core   +1 more source

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

open access: yesAdvanced Materials, EarlyView.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis   +6 more
wiley   +1 more source

Recent Advances in Stimuli‐Responsive Materials and Soft Robotic Actuators for Bioelectronic Medicine

open access: yesAdvanced Materials, EarlyView.
This review explores the integration of responsive materials and soft robotic actuators with implantable electronics to address key challenges in bioelectronic medicine. By enabling shape actuation, these technologies improve deployment, adaptability, and accuracy in minimally invasive procedures.
Chaoqun Dong, George G. Malliaras
wiley   +1 more source

Decoding Chemo‐Mechanical Failure Mechanisms of Solid‐State Lithium Metal Battery Under Low Stack Pressure via Optical Fiber Sensors

open access: yesAdvanced Materials, EarlyView.
By FBG sensing the Li/electrolyte interfacial stress in solid‐state battery, the Li metal anode failure reasons as dendrite‐induced uneven stress distribution at electrode/electrolyte interface are disclosed. A Li–Sn composite anode is demonstrated effective in stabilizing the interface mechanics and the solid‐state full cell performance at low stack ...
Guocheng Li   +11 more
wiley   +1 more source

Non-Abelian currents bootstrap

open access: yesJournal of High Energy Physics
We initiate the study of correlation functions of non-Abelian spin-1 conserved current in three-dimensional conformal field theories using numerical conformal bootstrap. We discuss the general framework and apply it to the particular cases of SU(N) and O(
Yin-Chen He   +3 more
doaj   +1 more source

Back to Parmenides [PDF]

open access: yes, 2017
After a brief introduction to issues that plague the realization of a theory of quantum gravity, I suggest that the main one concerns a quantization of the principle of relative simultaneity.
Gomes, Henrique de A.
core   +4 more sources

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

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