Results 81 to 90 of about 2,706,843 (321)
Gravitational Decoherence [PDF]
Class. Quantum Grav. 34, 193002 (2017), 2017 We discuss effects of loss of coherence in low energy quantum systems caused by or related to gravitation, referred to as gravitational decoherence. These effects, resulting from random metric fluctuations, for instance, promise to be accessible by relatively inexpensive table-top experiments, way before the scales where true quantum gravity effects ...
arxiv +1 more source
Advanced Materials Interfaces, EarlyView.This paper systematically introduces the characteristics and functions of 0D‐3D nanomaterials in super‐lubrication, analyzes the lubrication mechanism of these nanomaterials, and prospects the energy‐saving and environmental benefits brought by their progress in this field.
Kang Yang +7 more
wiley +1 more source
A Renormalizable Model of Quantum Gravity
, 2023 We develop a renormalizable model of Quantum General Relativity (QGR). We do this by building on earlier work with quantum electrodynamics (QED). Working with the Feynman path integral (FPI) approach to QED, we generalize the paths from varying in space to varying in space and time.
openaire +1 more source
3D Printed Magnetic Origami Scaffolds for Guided Tissue Assembly
Advanced Materials Interfaces, EarlyView.3D‐printed magnetic origami scaffolds enhance 3D coculture by directing cell proliferation pre‐folding, restricting expansion for controlled growth within the channel, and spatially and temporally promoting 3D multicellular dissemination post‐folding.
Brandon Daul +6 more
wiley +1 more source
Signature change in loop quantum gravity: General midisuperspace models and dilaton gravity [PDF]
Phys. Rev. D 95, 124014 (2017), 2016 Models of loop quantum gravity based on real connections have a deformed notion of general covariance, which leads to the phenomenon of signature change. This result is confirmed here in a general analysis of all midisuperspace models without local degrees of freedom.
arxiv +1 more source
Advanced Materials Technologies, EarlyView.Development of processing window for the continuous manufacturing of flexible and anisotropic piezoresistive films using magnetic‐field assisted alignment of Ni particles on a roll‐to‐roll processing line. Abstract Flexible pressure sensors are highly sought after for applications like rehabilitation healthcare, advanced wearable electronics ...
Nagarpita Moka Vidyanag +3 more
wiley +1 more source
Pregeometry and spontaneous time-space asymmetry
Journal of High Energy Physics, 2022 In pregeometry a metric arises as a composite object at large distances. We investigate if its signature, which distinguishes between time and space, could be a result of the dynamics rather than being built in already in the formulation of a model.
C. Wetterich
doaj +1 more source
Form Factors in Quantum Gravity - contrasting non-local, ghost-free gravity and Asymptotic Safety [PDF]
arXiv, 2021 Form factors constitute the key building block when organising the gravitational dynamics in terms of a curvature expansion. They generalise the concept of momentum-dependent couplings to curved spacetime. Moreover, they may capture modifications of the gravitational interactions at high energy scales in a non-perturbative way.
arxiv
Midi-superspace Models of Canonical Quantum Gravity [PDF]
arXiv: General Relativity and Quantum Cosmology, 1998 29 pages, RevTex, contribution to "Quantum Gravity in the Southern Cone II", Bariloche, Argentina, January 6-10 ...
openaire +4 more sources
Advanced Optical Materials, EarlyView.This study investigates CsPbBr3 nanowire (NW) array synthesis and stability using nanoporous anodized aluminum oxide (AAO) templates. Simulations identify optimal pore geometries for light–matter interactions (LMI). The ligand‐free modified inverse temperature crystallization (ITC) method is utilized for NW array growth, providing insights into a broad
Neena Prasad +8 more
wiley +1 more source