Tootfinder

Can’t wait to see this again. #Dogma
https://youtu.be/rwSRribTgdA?si=WaFwvIZVQ6QcfnmW

This is very cool! Someone made a Wallace and Gromit contraption!
https://youtu.be/Wv7WVaoJJ0Y?si=6h30bWgWDeDkTSYY

🇺🇦 #NowPlaying on #KEXP's #MiddayShow
Sea Lemon:
🎵 Give In
#SeaLemon
https://sealemonmusic.bandcamp.com/track/give-in
https://open.spotify.com/track/1w5bhVbpZPZ7mRPlVt9HIy
🎶 show playlist 👇
https://open.spotify.com/playlist/55kiq57r1ErxcYnr6B3P6g
🎶 KEXP playlist 👇
https://open.spotify.com/playlist/6VNALrOa3gWbk794YuIrwg

Energy and photon centroids of spatiotemporal light pulses and consequences for their intrinsic orbital angular momentum
Titouan Gadeyne, Thierry Ruchon
https://arxiv.org/abs/2506.13535

Energy and photon centroids of spatiotemporal light pulses and consequences for their intrinsic orbital angular momentum
An ongoing debate surrounding the intrinsic transverse orbital angular momentum (OAM) attributed to spatiotemporal optical vortex (STOV) light pulses has raised the energy and photon-density centroids as two alternative frameworks to define the center of a free electromagnetic wavepacket. We herein derive, within a single formalism, lowest-order expressions for the positions and velocities of both centroids, directly applicable to an arbitrary scalar, near-paraxial and quasi-monochromatic pulse…

🇺🇦 Auf radioeins läuft...
Kajagoogoo:
🎵 Too shy
#NowPlaying #Kajagoogoo
https://djloic.bandcamp.com/track/kajagoogoo-too-shy-remix
https://open.spotify.com/track/6WEBIVqiEsevfgJefTyuQQ

Anomalous Superfluid Density in Pair-Density-Wave Superconductors
Ke Wang, Qijin Chen, Rufus Boyack, K. Levin
https://arxiv.org/abs/2506.13631 https://

Anomalous Superfluid Density in Pair-Density-Wave Superconductors
We study the superfluid density $n_s(T)$ of pair-density-wave (PDW) superconductors; this determines where they are unstable and establishes signatures of their unusual order. Here we compute $n_s(T)$ for the 2D unidirectional PDW superconducting phases that emerge from a microscopic model (with nearest neighbor attraction). With gapped and gapless bands in the Bogoliubov quasiparticle dispersion, this theory provides self-consistently determined wavevectors \(\mathbf{Q}\) for the spatially mod…

4 #PositiveDinge gestern
- Grillen, auch wenn es nicht so ganz harmonisch ablief
- endlich Feierabend, am dummerweise nicht freigenommenen Brückentag
- mal wieder #Einsingen mit diesem guten Video:

Geometric Bloch oscillations and transverse displacement in flat band systems
Jing-Xin Liu, Giandomenico Palumbo, Marco Di Liberto
https://arxiv.org/abs/2506.04314

Geometric Bloch oscillations and transverse displacement in flat band systems
We investigate transport phenomena and dynamical effects in flat bands where the band dispersion plays no role. We show that wavepackets in geometrically non-trivial flat bands can display dynamics when inhomogeneous electric fields are present. This dynamics is revealed both for the wavepacket trajectory and for its variance, for which we derive semiclassical equations extended to the non-Abelian case. Our findings are tested in flat band models in one- and two-dimensional lattices where the d…

This https://arxiv.org/abs/2412.03412 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Wavepacket and Reduced-Density Approaches for High-Dimensional Quantum Dynamics: Application to the Nonlinear Spectroscopy of Asymmetrical Light-Harvesting Building Blocks
Excitation-energy transfer (EET) and relaxation in an optically excited building block of poly(phenylene ethynylene) (PPE) dendrimers are simulated using wavepackets with the multilayer multiconfiguration time-dependent Hartree (ML-MCTDH) method and reduced-density matrices with the hierachical equations of motion (HEOM) approach. The dynamics of the ultrafast electronic funneling between the first two excited electronic states in the asymmetrically meta-substituted PPE oligomer with two rings …

Spatiotemporal coupled Airy-Airy wavepacket and its propagation dynamics
Zhaofeng Huang, Xiaolin Su, Qian Cao, Andy Chong, Qiwen Zhan
https://arxiv.org/abs/2506.05805

Spatiotemporal coupled Airy-Airy wavepacket and its propagation dynamics
Airy beams, celebrated for their self-acceleration, diffraction-free propagation, and self-healing properties, have garnered significant interest in optics and photonics, with applications spanning ultrafast optics, laser processing, nonlinear optics, and optical communications. Recent research primarily aims at independent control of Airy beams in both spatial and spatiotemporal domains. In a pioneering approach, we have successfully generated and controlled a spatiotemporal coupled (STc) Airy…