Field NotesField Notes
A guided physics study app — from a single oscillator to quantum fields.
Field Notes builds quantum field theory from the ground up. Start with masses on springs, watch their motions become independent modes, and follow those modes into waves, fields, and particles — with interactive labs, mastery checks, and a grounded AI tutor at every step.
Free to explore. No account required to read lessons or use the labs.
Interactive labs
Manipulate oscillators, waves, and fields in real time and watch every equation respond.
Mastery checks
Predict, calculate, and explain to earn evidence. Progress is paced by understanding, not seat time.
Grounded AI tutor
Ask questions and get answers constrained to an approved physics source packet — uncertainty instead of invented citations.
One coherent arc
Travel from a single spring-mass oscillator to quantum field theory, gauge fields, and the Standard Model.
Your data & privacy
You can read every lesson and use every interactive model without an account. Signing in with Google is optional and is used only to save your learning progress across devices.
When you do sign in, Field Notes requests only your basic Google profile and email address, and uses them solely to identify your account and store your progress so you can restore, export, or delete it at any time. Field Notes never posts to your account or shares your data. See the Privacy Policy for details.