A few of the ideas, topics, and commonplaces that have been gaining steam on arXiv during the last few months (yes, I do a lot of filtering to keep away most of the genAI stuff; explainer).
1. Cherenkov Telescope Array Observatory: As the Wikipedia article says: The Cherenkov Telescope Array Observatory (CTAO) is a multinational project to build a new generation of ground-based gamma-ray instruments in the energy range extending from some tens of GeV to about 300 TeV. The genAI boom obscures some of it and the ongoing US attack on science is slowing and might roll back some of it, but we truly live in a mindblowing time for observational astronomy.
Some recent articles:
- Design of an Imaging Air Cherenkov Telescope array layout with differential programming
- Recent observations of PKS 2155-304 with MAGIC and LST-1 in a multi-wavelength context
- VHE $γ$-ray observations of bright BL Lacs with the Large-Sized Telescope prototype (LST-1) of the CTAO
- Enhancing the development of Cherenkov Telescope Array control software with Large Language Models
- The trigger design for AdvCam
2. Optical interconnects: Although purely optical computers never developed the way it seemed a while ago they might, the engineering has gone very far and with perhaps even more important applications than "replacing existing computers." (The same, I suspect, will happen with quantum computers.)
Some recent articles:
- Light coupling to photonic integrated circuits using optimized lensed fibers
- Single chip 1 Tb/s optical transmitter with inverse designed input and output couplers
- Effective programming of a photonic processor with complex interferometric structure
- Frequency-stable nanophotonic microcavities via integrated thermometry
- High-Performance Wavelength Division Multiplexers Enabled by Co-Optimized Inverse Design
3. Abelian anyons: Abelian or not, anyons are among the most basic yet most profound concepts in quantum physics you try to wrap your head around. Cats in boxes are a classic for a reason, but unintuitive topologies can give you vertigo in the best way.
Some recent articles:
- Nonlinear Landau levels in the almost-bosonic anyon gas
- Nonlinear Symmetry-Fragmentation of Nonabelian Anyons In Symmetry-Enriched Topological Phases: A String-Net Model Realization
- Utility-Scale Quantum State Preparation: Classical Training using Pauli Path Simulation
- Symmetries and dynamics of quantum Hall bulk anyons in quadratic potentials
- String-Membrane-Nets from Higher-Form Gauging: An Alternate Route to $p$-String Condensation