Tootfinder

Design of broadband optical gain in GaSb-based waveguide amplifiers with asymmetric quantum wells
Ifte Khairul Alam Bhuiyan, Joonas Hilska, Markus Peil, Jukka Viheriala, Mircea Guina
https://arxiv.org/abs/2508.17495

Design of broadband optical gain in GaSb-based waveguide amplifiers with asymmetric quantum wells
A design strategy for achieving broadband optical gain in GaSb-based semiconductor amplifiers operating beyond 2 μm is presented. By employing asymmetric GaInSb/AlGaAsSb quantum wells (QWs) of varying thicknesses, a flat and wide gain spectrum is demonstrated. The approach leverages carrier density and transition energy tuning across QWs to access various energy levels at specific current densities. Simulations using "Harold" self-consistent environment predict a full-width at half-maximum (FW…

ALMA-IMF XIX: C18O (J=2-1): Measurements of turbulence in 15 massive protoclusters
A. Koley, A. M. Stutz, F. Louvet, F. Motte, A. Ginsburg, R. Galv\'an-Madrid, R. H. \'Alvarez-Guti\'errez, P. Sanhueza, T. Baug, N. Sandoval-Garrido, J. Salinas, G. Busquet, J. Braine, H. -L. Liu, T. Csengeri, A. Gusdorf, M. Fern\'andez-L\'opez, N. Cunningham, L. Bronfman, M. Bonfand

ALMA-IMF XIX: C18O (J=2-1): Measurements of turbulence in 15 massive protoclusters
ALMA-IMF is a large program of the Atacama Large Millimeter/submillimeter Array (ALMA) that aims to determine the origin of the core mass function (CMF) of 15 massive Galactic protoclusters (~ 1.0-25.0 x 10^3 solar mass within ~ 2.5 x 2.5 pc^2 ) located towards the Galactic plane. In addition, the objective of the program is to obtain a thorough understanding of their physical and kinematic properties. Here we study the turbulence in these protoclusters with C18O (2-1) emission line using the s…

Density estimates for Ginzburg-Landau energies with degenerate double-well potentials
Ovidiu Savin, Chilin Zhang
https://arxiv.org/abs/2506.17000 https://

Density estimates for Ginzburg-Landau energies with degenerate double-well potentials
We consider a class of Allen-Cahn equations associated with Ginzburg-Landau energies involving degenerate double-well potentials that vanish of order $m$ at the minima \begin{equation} J(v,Ω)=\int_Ω\Big\{|\nabla v|^{p}+(1-v^{2})^{m}\Big\}dx,\quad 1

Florida higher ed board stuns UF, blocks Santa Ono from becoming president (Alan Festo/The Gainesville Sun)
https://eu.gainesville.com/story/news/education/2025/06/03/board-of-governors-rejects-santa-ono-as-university-of-florida-president/84007003007/
http://www.memeorandum.com/250603/p149#a250603p149

Lew Welch had been a fixture among the best minds of the Beat generation—a friend of Allen Ginsberg and Jack Kerouac and Gary Snyder,
a kindred California spirit whose writing never achieved the same profile.
In 1971, Welch, who had been building a cabin on the San Juan Ridge, on land Ginsberg had left him,
walked away from the property with a .22-caliber revolver
and was never seen again.
“I had great visions but never could bring them together with reality,”…

Alta Folio: ‘I Went Southwest’
Writer Brad Rassler digs into the disappearance and afterlife of Beat poet Lew Welch.

#Nachtschicht auf 3Sat war echt gut. Aber es tut mir leid das sagen zu müssen, @…, Albrecht Ganskopf hat allen die Show gestohlen. "Hände desinfizieren, Abstand halten!"

Circum-nuclear eccentric gas flow in the Galactic Center revealed by ALMA CMZ Exploration Survey (ACES)
Yoshiaki Sofue, Tomoharu Oka, Steven N. Longmore, Daniel Walker, Adam Ginsburg, Jonathan D. Henshaw, John Bally, Ashley T. Barnes, Cara Battersby, Laura Colzi, Paul Ho, Izaskun Jimenez-Serra, J. M. Diederik Kruijssen, Elizabeth Mills, Maya A. Petkova, Mattia C. Sormani, Jennifer Wallace, Jairo Armijos-Abenda\~no, Katarzyna M. Dutkowska, Rei Enokiya, Pablo Garc\'ia, Savannah Gramz…

Circum-nuclear eccentric gas flow in the Galactic Center revealed by ALMA CMZ Exploration Survey (ACES)
We analyze the CS (J=2-1) line cube from the internal data release obtained by the large-scale program "ALMA CMZ Exploration Survey (ACES)" to investigate the kinematic structure of the innermost $\sim 10$ pc region of the Galaxy, which contains the high-velocity compact cloud (HVCC) at $(l,b,v_{\rm lsr})\sim(+0^\circ.02,-0^\circ.02, 100 {\rm km~s}^{-1})$ (hereafter G0.02). The longitude-velocity diagram (LVD) of the cloud draws an elliptical structure, which is interpreted as an orbital trajec…

#PhantastikPrompts 03.08.:
Beeinflussen dich die Geschichten aus dem gestrigen Prompt heute in dem, was du schreibst?
Ich glaube, vor allem der Aspekt dessen, dass manchmal Unerklärliches unerklärlich, seltsam, geheimnisvolles es auch bleiben darf und mir das Gefühl nach Weite und Mysterien gibt, habe ich behalten.
Ansonsten würde mein jüngeres ich, das zwischen 10 und…

Generation of new quadratic coefficients within Ginzburg-Landau theory: Applications for specific heat calculations in various high-temperature superconductors
Feulefack Ornela Claire, Keumo Tsiaze Roger Magloire, Tsague Fotio Carlos, Danga Jeremie Edmond, Fotue Alain Jerve, Mahouton Norbert Hounkonnou
https://arxiv.org/abs/2507…

Generation of new quadratic coefficients within Ginzburg-Landau theory: Applications for specific heat calculations in various high-temperature superconductors
We revisit Landau's theory by renormalizing quadratic coefficients from nonlinear polynomial equations to adapt them to the system's dimensionality. These coefficients are employed to perform detailed specific-heat calculations for several high-temperature superconductors near the superconducting transition. We phenomenologically explain the change in the specific heat jump using Ginzburg-Landau theory, which is applicable to any spatial arrangement and interactions between electrons that influ…

A further remark on the density estimate for degenerate Allen-Cahn equations: $\Delta_{p}$-type equations for $1<p<\frac{n}{n-1}$ with rough coefficients
Chilin Zhang
https://arxiv.org/abs/2507.19820

A further remark on the density estimate for degenerate Allen-Cahn equations: $Δ_{p}$-type equations for $1
In this short remark on a previous paper \cite{SZ25}, we continue the study of Allen-Cahn equations associated with Ginzburg-Landau energies \begin{equation*} J(v,Ω)=\int_Ω\Big\{F(\nabla v,v,x)+W(v,x)\Big\}dx, \end{equation*} involving a Dirichlet energy $F(\vecξ,τ,x)\sim|\vecξ|^{p}$ and a degenerate double-well potential $W(τ,x)\sim(1-τ^{2})^{m}$. In contrast to \cite{SZ25}, we remove all regularity assumptions on the Ginzburg-Landau energy. Then, with further assumptions th…