Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Join them; it only takes a minute:

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

This is a common assumption in the study of quantum computation to assume that the quantum systems involved are finite-dimensional, since qubits lives in the two-dimensional Hilbert space.

According to Roman Gielerak and Marek Sawerwain, the quantum registers corresponding to a quantum computing machine with coherent pulses of light must have an infinite-dimensional character.

I am looking for arguments for and against the hypothesis that finite-dimensional structures are sufficient to study quantum computation.

share|cite|improve this question

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.