Results 121 to 130 of about 32,344 (267)

Non‐Markovian Quantum Kinetic Simulations of Uniform Dense Plasmas: Mitigating the Aliasing Problem

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Dense quantum plasmas out of equilibrium are successfully modeled using quantum kinetic equations, such as the quantum Boltzmann, Landau, or Balescu–Lenard equation. However, these equations do not properly take into account correlation effects, which require the use of generalized non‐Markovian kinetic equations.
C. Makait, M. Bonitz
wiley   +1 more source

On the Origin of the Harmonic Term in Noncommutative Quantum Field Theory

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
The harmonic term in the scalar field theory on the Moyal space removes the UV-IR mixing, so that the theory is renormalizable to all orders. In this paper, we review the three principal interpretations of this harmonic term: the Langmann-Szabo duality ...
Axel de Goursac
doaj   +1 more source

Strain analysis of black‐to‐yellow phase transitions in CsPbI3

open access: yesInfoMat, EarlyView.
All‐inorganic metal‐halide perovskite CsPbI3 shows strong potential for photovoltaic applications. Here strain analysis is used to probe the mechanisms behind the instability of its photoactive black phase. The results indicate that a relatively large positive (e1–e2) strain is the primary driver of the black‐to‐yellow phase transition.
Bangwei Jin   +6 more
wiley   +1 more source

All‐Fiber Microsensor of Polarization at Single‐Photon Level Aided by Deep Learning

open access: yesLaser &Photonics Reviews, EarlyView.
Introducing a polarization sensor using scattering in a short optical fiber and deep learning. The breakthrough lies in sparse sampling of the scattered light and single‐photon sensitivity. The all‐fiber sensor achieves unprecedented accuracy, speed, resolution, and stability.
Martin Bielak   +2 more
wiley   +1 more source

Climatic Specific Energy Rating Analysis of Outdoor PV Field Data

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
The study evaluates the Climatic Specific Energy Rating (CSER) of Photovoltaic device according to IEC 61853 standard series. It explores the use of long‐term PV outdoor field data in order to understand how the length and seasonality of the data acquisition period affects the reliability of the CSER parameter. It provides important insights for the PV
Teodora S. Lyubenova   +2 more
wiley   +1 more source

Fundamental Properties of Heavily Ge‐Doped AlGaN Prepared via Pulsed Sputtering

open access: yesphysica status solidi (b), EarlyView.
This study explores the properties of heavily Ge‐doped AlGaN films prepared via pulsed sputtering deposition. Films with Al content below 34% exhibit higher electron concentrations than Si‐doped counterparts. The maximum carrier concentration reaches 1.8 × 1020 cm−3. Optical bandgaps are enhanced by the Burstein–Moss shift.
Aiko Naito, Kohei Ueno, Hiroshi Fujioka
wiley   +1 more source

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