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All-polarisation beamsplitters for interferometer applications
S. L. Kranzhoff, Z. Van Ranst, J. De Bolle, S. Coessens, S. L. Danilishin, C. Detavernier, P. F. Smet, A. P. Spencer, J. Steinlechner, S. Steinlechner, M. Vardaro, S. Hild
https://arxiv.org/abs/2507.22866

All-polarisation beamsplitters for interferometer applications
Optical beamsplitters with similar properties for orthogonal, linear polarisation modes are required for realising polarisation-based speedmeter schemes to reduce back-action noise in gravitational-wave interferometers. In this paper, we investigate two beamsplitter coatings obtained from Laseroptik GmbH and Optoman on a best-effort basis that aim for a 50/50 power splitting ratio and equal overall phase shift for two orthogonal, linear polarisation modes interacting with the optic. We show tha…

Leveraging Caliper and Benchpark to Analyze MPI Communication Patterns: Insights from AMG2023, Kripke, and Laghos
Grace Nansamba, Evelyn Namugwanya, David Boehme, Dewi Yokelson, Riley Shipley, Derek Schafer, Michael McKinsey, Olga Pearce, Anthony Skjellum
https://arxiv.org/abs/2507.22372

Leveraging Caliper and Benchpark to Analyze MPI Communication Patterns: Insights from AMG2023, Kripke, and Laghos
We introduce ``communication regions'' into the widely used Caliper HPC profiling tool. A communication region is an annotation enabling capture of metrics about the data being communicated (including statistics of these metrics), and metrics about the MPI processes involved in the communications, something not previously possible in Caliper. We explore the utility of communication regions with three representative modeling and simulation applications, AMG2023, Kripke, and Laghos, all part of t…

Permitted Trump-Epstein statue smashed and removed - Boing Boing
https://boingboing.net/2025/09/24/permitted-trump-epstein-statue-smashed-and-removed-without-notice.html

Revolut erhält die Banklizenz für Mexiko
Die britische Neobank Revolut hat die endgültige Genehmigung für die Aufnahme des Bankbetriebs in Mexiko erhalten und nimmt bereits weitere Länder ins Visier.
https://www.

🇺🇦 #NowPlaying on KEXP's #Early
Spoon:
🎵 Back to the Life
#Spoon
https://spoontheband.bandcamp.com/track/back-to-the-life
https://open.spotify.com/track/0lmLH3eBNKf2S1xRnfkiDo

Generation of C-band entangled photon pairs by biexciton-exciton cascade from symmetric InAs/InP quantum dots
Anna Musia{\l}, Maja Wasiluk, Katarzyna Roszak, Micha{\l} Gawe{\l}czyk, Wojciech Rudno-Rudzi\'nski, Pawe{\l} Wyborski, Johann P. Reithmaier, Mohamed Benyoucef, Grzegorz S\k{e}k
https://arxiv.org/abs/2509.24500

Generation of C-band entangled photon pairs by biexciton-exciton cascade from symmetric InAs/InP quantum dots
Hereby, we study the generation of pairs of polarization-entangled photons at telecom C-band by biexciton-exciton cascade from non-resonantly excited epitaxial InAs/InP quantum dots (QDs). It is realized without external tuning of the fine structure splitting (FSS), which does not exceed 10 $μ$eV in as-grown nanostructures, due to their high in-plane symmetry. Excitonic complexes are identified by means of excitation power-dependent and polarization-resolved magneto)microphotoluminescence. The…

From #boingboing.net
“#Byte magazine ran in print from 1975 to 1998, a golden age that began with the first commercially successful personal computer and ending with the Digital Millennium Copyright Act (or the introduction of the iMac, perhaps.) At byte.tsundoku.io, you can explore the visual histo…

Misere bei der DB: Bahnchef Lutz gefeuert
Richard Lutz erlebte als Bahnchef krisenreiche Zeiten – seit Jahren kommt der Konzern nicht zur Ruhe. Nun soll ein Wechsel an der Spitze den Umschwung bringen.
https://www.