Results 91 to 100 of about 240,834 (310)

Primitive Ligands Drive 1D CsPbI3 Nanostructures with Strongly Polarized Photoluminescence

open access: yesAngewandte Chemie, EarlyView.
This work illustration highlights I− concentration drives the structural evolution of CsPbI3 from cubic to orthorhombic phase, accompanied by octahedral distortion. In addition, increasing I− transforms nanorods into ginkgo‐leaf‐like assemblies, including a 659–683 nm PL redshift due to bandgap narrowing and strain effects.
Juan Xie   +12 more
wiley   +2 more sources

Exploiter le potentiel des processus de renormalisation en formation à l’enseignement

open access: yesActivités, 2014
The article analyzes the potential of renormalization contained in “activity oriented” training devices using the viewing of films showing teachers at work.
Valérie Lussi Borer, Alain Muller
doaj   +1 more source

Unraveling Energy Flow Mechanisms in Semiconductors by Ultrafast Spectroscopy: Germanium as a Case Study

open access: yesAdvanced Science, EarlyView.
A multi‐technique pump‐probe setup capable of performing both transient reflectivity and time‐resolved Raman spectroscopy after ultrafast excitation, provides a comprehensive understanding of ultrafast electronic and phononic processes. Distinct decay rates for the temperature, frequency, and linewidth of the phonon mode in germanium are observed ...
Grazia Raciti   +10 more
wiley   +1 more source

Maximal abelian and Curci-Ferrari gauges in momentum subtraction at three loops

open access: yes, 2015
The vertex structure of QCD fixed in the maximal abelian gauge (MAG) and Curci-Ferrari gauge is analysed at two loops at the fully symmetric point for the 3-point functions corresponding to the three momentum subtraction (MOM) renormalization schemes ...
Bell, J. M., Gracey, J. A.
core   +1 more source

Fractional Laplasians and propagation of waves in three-dimensional space as quantum process

open access: yesФизика волновых процессов и радиотехнические системы, 2016
In this paper it is shown that in the whole range of problems of waves propagation there is hidden feynmanon. We call by feynmanon the quantum object moving along fractal trajectories in phase space of dynamical system related with wave equation ...
A.A. Potapov, A.E. Rassadin
doaj  

Exact Renormalization Groups As a Form of Entropic Dynamics

open access: yesEntropy, 2018
The Renormalization Group (RG) is a set of methods that have been instrumental in tackling problems involving an infinite number of degrees of freedom, such as, for example, in quantum field theory and critical phenomena.
Pedro Pessoa, Ariel Caticha
doaj   +1 more source

d‐Wave Fermi Surface Instability in the Nematic Phase of Two Monolayer FeSe/SrTiO3

open access: yesAdvanced Science, EarlyView.
Angle‐resolved photoemission spectroscopy reveals a d‐wave nematic order in two‐monolayer FeSe/SrTiO3, showing degenerate dxz/dyz bands at Γ but a pronounced splitting at M. This momentum‐dependent anisotropy identifies the nematicity as a d‐wave Fermi surface (Pomeranchuk) instability, highlighting 2D FeSe as a model platform to explore the interplay ...
C. Y. Tang   +14 more
wiley   +1 more source

Towards c=0 Flows

open access: yes, 1994
We discuss some implications of the gravitational dressing of the renormalization group for conformal field theories perturbed by relevant operators. The renormalization group flows are defined with respect to the dilatation operator associated with the $
Ambjorn   +25 more
core   +2 more sources

Gauge-Invariant Slavnov–Taylor Decomposition for Trilinear Vertices

open access: yesUniverse
We continue the analysis of the gauge-invariant decomposition of amplitudes in spontaneously broken massive gauge theories by performing the characterization of separately gauge-invariant subsectors for amplitudes involving trilinear interaction vertices
Andrea Quadri
doaj   +1 more source

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