Tootfinder

Experimental Construction of NOON State Dynamics in Photonic Flat Band Lattices
Rishav Hui, Trideb Shit, Marco Di Liberto, Diptiman Sen, Sebabrata Mukherjee
https://arxiv.org/abs/2508.21700

Experimental Construction of NOON State Dynamics in Photonic Flat Band Lattices
We investigate the transport of path-entangled multi-photon NOON states in a flat-band photonic rhombic lattice and observe intriguing localization-delocalization features that depend on the phase as well as the photon number of the NOON states. To experimentally emulate photon number correlations, we develop an intensity correlation measurement protocol using coherent laser light with tunable relative phases. We first apply this protocol to show spatial bunching and anti-bunching of two-photon…

Minimal velocity of the travelling wave solutions in two coupled FKPP equations with the global conservation law
O. I. Baburin, I. S. Burmistrov
https://arxiv.org/abs/2509.14833

Minimal velocity of the travelling wave solutions in two coupled FKPP equations with the global conservation law
We investigate the system of two coupled one-dimensional Fisher-Kolmogorov-Petrovsky-Piskunov (FKPP) equations which possess the global conservation law. Such system of equations has been recently derived for the quasiparticle densities in the two-band fermionic model with the particle-number conserving dissipative protocol. As standard FKPP equation the studied system of equations has one unstable and one stable homogeneous solution with travelling wave switching between them. We demonstrate t…

In Vivo Wideband MR Elastography for Assessing Age-Related Viscoelastic Changes of the Human Brain
Jakob Schattenfroh, Tom Meyer, Hossein S. Aghamiry, Noah Jaitner, Michael Fedders, Steffen G\"orner, Helge Herthum, Stefan Hetzer, Melanie Estrella, Guillaume Fl\'e, Paul Steinmann, Jing Guo, Ingolf Sack
https://arxiv.org/abs/2509.08…

In Vivo Wideband MR Elastography for Assessing Age-Related Viscoelastic Changes of the Human Brain
Magnetic Resonance Elastography (MRE) provides maps of brain biomechanics and is highly sensitive to alterations associated with aging and neurodegenerative disease. Most implementations use a single frequency or a narrow frequency band, limiting analysis of frequency-dependent viscoelastic parameters. We developed a dual-actuator wideband MRE (5-50 Hz) protocol and acquired wavefields at 13 frequencies in 24 healthy adults (young: 23-39 years; old: 50-63 years). Shear wave speed (SWS) maps wer…