title: Critical collapse of a complex scalar field with angular momentum.
abstract: We report a new critical solution found at the threshold of axisymmetric gravitational collapse of a complex scalar field with angular momentum. To carry angular momentum the scalar field cannot be axisymmetric; however, its azimuthal dependence is defined so that the resulting stress-energy tensor and spacetime metric are axisymmetric. The critical solution found is nonspherical, discretely self-similar with an echoing exponent Delta=0.42(+/-4%), and exhibits a scaling exponent gamma=0.11(+/-10%) in near-critical collapse. Our simulations suggest that the solution is universal (within the imposed symmetry class), modulo a family-dependent constant, complex phase.
authors.affiliation: CIAR Cosmology and Gravity Program, Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.
authors.forename: Matthew W
authors.initials: MW
authors.lastname: Choptuik
authors.forename: Eric W
authors.initials: EW
authors.lastname: Hirschmann
authors.forename: Steven L
authors.initials: SL
authors.lastname: Liebling
authors.forename: Frans
authors.initials: F
authors.lastname: Pretorius