TY - JOUR AU - Haljan, P AU - Anderson, B AU - Coddington, I AU - Cornell, Eric C2 - Physical Review Letters DA - 2001-01-01 00:01:00 LA - en M1 - 86 PB - Physical Review Letters PY - 2001 TI - Use of surface-wave spectroscopy to characterize tilt modes of a vortex in a Bose-Einstein condensate ER -