haag's theorem

Questions

What does haag's theorem mean?

A theorem stating that the interaction picture does not exist in an interacting, relativistic quantum field theory.

Where does haag's theorem come from?

Named after Rudolf Haag.

How to pronounce haag's theorem

1. Open the pronunciation page — Open the Speakur entry for “haag's theorem”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “haag's theorem”.
4. Repeat and practice — Say “haag's theorem” aloud, matching stress and vowels until it feels natural.