Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Can anyone explain in a simple manner why interacting noncommutative quantum field theories with space-time noncommutativity of the Moyal bracket sort are unitary?


share|cite|improve this question
This is a bit over my head (and same goes for most people here), but I do hope you get a good answer. (If nobody else contributes then perhaps I'll see if I can research it a bit, if/when I get time) – David Z Dec 12 '11 at 20:50
This paper seems relevant – Qmechanic Dec 13 '11 at 14:37

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.