Noncommutative supersymmetric tubes

We investigate supersymmetric tubular configurations in the matrix theory. We construct a host of BPS configurations of eight supersymmetries. They ca n be regarded as cylindrical D2 branes carrying nonvanishing angular moment um. For the simplest tube, the world volume can be described as noncommutat ive tube and the world volume dynamics can be identified as a noncommutativ e gauge theory. Among the BPS configurations, some describe excitations on the tube and others describe many parallel tubes of different size and cent er. (C) 2001 Published by Elsevier Science B.V.