Tootfinder

Dr Wenowdis: Specializing dynamic language C extensions using type information
Maxwell Bernstein, CF Bolz-Tereick
https://arxiv.org/abs/2403.02420 https://…

Dr Wenowdis: Specializing dynamic language C extensions using type information
C-based interpreters such as CPython make extensive use of C "extension" code, which is opaque to static analysis tools and faster runtimes with JIT compilers, such as PyPy. Not only are the extensions opaque, but the interface between the dynamic language types and the C types can introduce impedance. We hypothesise that frequent calls to C extension code introduce significant overhead that is often unnecessary. We validate this hypothesis by introducing a simple technique, "typed methods", wh…

The Future of Primordial Black Holes: Open Questions and Roadmap
Antonio Riotto, Joe Silk
https://arxiv.org/abs/2403.02907 https://ar…

The Future of Primordial Black Holes: Open Questions and Roadmap
We discuss some of the the open questions and the roadmap in the physics of primordial black holes. Black holes are the only dark matter candidate that is known to actually exit. Their conjectured primordial role is admittedly based on hypothesis rather than fact, most straightforwardly as a simple extension to the standard models of inflation, or even, in homage to quantum physics, more controversially via a slowing-down of Hawking evaporation. Regardless of one's stance on the theoretical bas…

Extension of the characterization method for non-Gaussianity in gravitational wave detector with statistical hypothesis test
Shunsei Yamamura, Hirotaka Yuzurihara, Takahiro Yamamoto, Takashi Uchiyama
https://arxiv.org/abs/2403.12731

Extension of the characterization method for non-Gaussianity in gravitational wave detector with statistical hypothesis test
In gravitational wave astronomy, non-Gaussian noise, such as scattered light noise disturbs stable interferometer operation, limiting the interferometer's sensitivity, and reducing the reliability of the analyses. In scattered light noise, the non-Gaussian noise dominates the sensitivity in a low frequency range of less than a few hundred Hz, which is sensitive to gravitational waves from compact binary coalescence. This non-Gaussian noise prevents reliable parameter estimation, since several a…