Physical Instances of Noncommuting Coordinates

Abstract

Noncommuting spatial coordinates and fields can be realized in actual physical situations. Plane wave solutions to noncommuting photodynamics exhibit violaton of Lorentz invariance (special relativity).

Comments: 13 pp., using sprocl and amsmath macros; Email correspondence to jackiw@lns.mit.edu; talk given at Feza Gursey Institute, Istanbul, Turkey -- June 2001; "Symmetry Methods in Physics", Yerevan, Armenia -- July 2001; "CPT and Lorentz Symmetry II", Bloomington, IN -- August 2001; "Particles and Strings", Trento, Italy -- September 2001; "VIII Adriatic Meeting", Dubrovnik, Croatia -- September 2001