Notes

New Paper: Mitigating PSD Drift in Zero-Latency GW Searches

Research
LIGO
Multi-Messenger Astronomy
Paper

Our new paper introduces the Dual Cutler-Vallisneri Corrections, a novel perturbative framework to eliminate sky-localization and timing biases caused by power spectral density (PSD) drift in real-time gravitational-wave pipelines.

Mar 11, 2026

Keeping Up with ArXiv using Sxolar

Physics
Code

Introducing sxolar, a Python library that allows you to search ArXiv and get daily email alerts for new papers in your field of interest. This post walks through the process of setting up periodic email alerts with sxolar, including configuring queries, setting up Google Mail access, and scheduling with GitHub Actions.

Jan 20, 2025

New Paper: Hunting for Primordial Black Holes, The O4 Sub-Solar Mass Bank

Research
LIGO
Dark Matter
Paper

A new paper presenting a novel template bank for searching for sub-solar mass compact binary mergers in LIGO’s fourth observing run (O4). This bank is designed to detect potential primordial black holes, which could provide evidence for dark matter. The paper introduces a new neighborhood metric estimation technique to handle the extreme curvature of the signal manifold in this low-mass regime.

Dec 16, 2024

Interactive App: Digital Signal Processing Explorer

Code
Physics
Signal Processing
Education

Introducing the DSP Filter Design Explorer, an interactive web application built with Python and Dash that allows users to explore the effects of pole and zero placement on filter stability, frequency response, and impulse response in both analog and digital domains. This tool provides a hands-on learning experience for students and engineers to develop intuition about signal processing concepts.

Nov 1, 2024

Describing Ourselves as Physicists

Physics

Exploring the nuances of identity in physics, this post delves into the various categories of physicists based on their approach to physics, thought processes, and career development stages. It highlights the distinctions between experimentalists, phenomenologists, and theorists, as well as different types of theorists and stages of mathematical rigor in a physicist’s career.

May 18, 2024

Namespacing SSH Credentials with Git

Code

A guide to setting up SSH namespaces with Git, allowing you to use different SSH keys for different accounts on the same Git hosting service. This is particularly useful for developers who have both personal and work accounts on platforms like GitHub, GitLab, or Bitbucket.

Mar 4, 2024

New Paper: Geometric Template Placement with Binary Trees

Research
Code
Geometry
Paper

Introducing a new paper on geometric template placement for gravitational wave detection, utilizing a binary tree approach to efficiently cover the parameter space of compact binary mergers. This method offers significant computational advantages and improved structure over traditional stochastic placement techniques.

Sep 22, 2022

Recent Finds #1

Physics
Math

In this inaugural issue of the ‘Recent Finds’ series, we explore the algebraic and geometric equivalence of tangent vectors as presented in Chris Isham’s ‘Modern Differential Geometry for Physicists’, and delve into the concept of Particle Swarm Optimization (PSO) and its applications in various scientific fields, including gravitational wave analysis.

Sep 19, 2021

Algebra Ladder

Math
Algebra
Group Theory

A visual map of algebraic structures, showing the relationships between sets, magmas, groups, rings, fields, and more. This diagram helps clarify the hierarchy and connections between different algebraic objects commonly used in mathematical physics.

Mar 15, 2020

Book Review: Tensors and Group Theory for Physicists (Jeevanjee)

Books
Physics
Math

A review of Nadir Jeevanjee’s ‘An Introduction to Tensors and Group Theory for Physicists’, highlighting its rigorous yet intuitive approach to tensors and group theory, making it a valuable resource for both physicists and computer scientists.

Jun 28, 2019
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