Hu, BambiHu, GangZheng, Zhigang2004-12-142004-12-1420012001http://hdl.handle.net/2003/1861410.17877/DE290R-16244enThe American Physical SocietyPhysical Review Letters530Collective Directional Transport in Coupled Nonlinear Oscillators without External Bias10.1103/PhysRevLett.86.2273article (journal)