TY - JOUR AU - J. McGuirk AU - Heather Lewandowski AU - D. Harber AU - T. Nikuni AU - J. Williams AU - Eric Cornell BT - Physical Review Letters DA - 2002-08 DO - 10.1103/PhysRevLett.89.090402 PY - 2002 T2 - Physical Review Letters TI - Spatial Resolution of Spin Waves in an Ultracold Gas VL - 89 SN - 0031-9007 ER -