Ultracold | Karmela Padavic Callaghan | Substack

Entangled States

On writing my memoir, now available for pre-order

Nov 24, 2025 • Karmela Padavic Callaghan

Relational Quantum Mechanics

On watching a film that I feared for years

Oct 27, 2025 • Karmela Padavic Callaghan

A newsletter reintroduction

Oct 28, 2024 • Karmela Padavic Callaghan

Media/Diet (August '25)

How to host your mom in NYC (but she's more fun than you and already loves the city)

Aug 11, 2025 • Karmela Padavic Callaghan

Probability Density

On being trans in 2025

Jun 23, 2025 • Karmela Padavic Callaghan

Ultracold

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