Results 41 to 50 of about 5,915,931 (293)

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Evading the non-continuity equation in the f(R, T) cosmology

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We present a new approach for the f(R, T) gravity formalism, by thoroughly exploring the extra terms of its effective energy-momentum tensor $$T_{\mu \nu }^\mathrm{eff}$$ Tμνeff , which we name $$\tilde{T}_{\mu \nu }$$ T~μν , so that $$T_{\mu \nu ...
P. H. R. S. Moraes   +2 more
doaj   +1 more source

The confining color field in SU(3) gauge theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We extend a previous numerical study of SU(3) Yang–Mills theory in which we measured the spatial distribution of all components of the color fields surrounding a static quark–antiquark pair and provided evidence that the simulated gauge invariant ...
M. Baker   +5 more
doaj   +1 more source

The Light-Front Energy-Momentum Tensor [PDF]

open access: yesProceedings of QCD Evolution 2015 — PoS(QCDEV2015), 2016
10 pages, contribution to the proceedings of the QCD Evolution 2015 Workshop, May 26-30, Jefferson Lab, Newport News, Virginia ...
openaire   +2 more sources

Energy momentum tensor correlators in Improved Holographic QCD [PDF]

open access: yes, 2013
Krssak M. Energy momentum tensor correlators in Improved Holographic QCD. Bielefeld: Bielefeld University; 2013.In this thesis, we study the physics of the quark gluon plasma (QGP) using holographic methods borrowed from string theory.
Krssak, Martin ; https://orcid.org/   +1 more
core  

Conformal Symmetries of the Energy–Momentum Tensor of Spherically Symmetric Static Spacetimes [PDF]

open access: yes, 2022
Conformal matter collineations of the energy–momentum tensor of a general spherically symmetric static spacetime are studied. The general form of these collineations is found when the energy–momentum tensor is non-degenerate, and the maximum ...
Ugur Camci   +3 more
core   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh   +4 more
wiley   +1 more source

Scale invariance and the energy–momentum tensor

open access: yes, 1970
A method is described by which an energy–momentum tensor can be constructed such that in addition to the usual properties of this tensor it acquires the property of scale invariance in the absence of masses and charges.
Peter Bendix
core   +1 more source

Emergent Spin Supersolids in Frustrated Quantum Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang   +2 more
wiley   +1 more source

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