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Numlock Sunday: Karmela Padavic-Callaghan on Entangled States

May 31, 2026
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By Walt Hickey

Welcome to the Numlock Sunday edition.

This week, I spoke with Karmela Padavic-Callaghan a physicist and journalist who is out with a new book, Entangled States: Life According to Quantum Physics.

It’s a great read about the frontiers of physics, part memoir and part dive into the fascinating idiosyncrasies of particle physics.

Entangled States is available wherever books are sold. You can find them at New Scientist or their personal substack Ultracold.

This interview has been condensed and edited.

Karmela, thank you so much for coming on. You are the author of the brand new book, Entangled States: Life According to Quantum Physics. To start off, you are a science writer, you work for New Scientist. Do you want to talk a little bit about your work in general, your beat and what got you interested in physics?

Yeah, thank you. I am a full-time staff writer at New Scientist. My official job is physics reporter, but within physics, which is a huge category, I like to say I focus …

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