Bloch, ImmanuelEsslinger, TilmanGreiner, MarkusHänsch, Theodor W.Mandel, Olaf2004-12-032004-12-0320012001http://hdl.handle.net/2003/129810.17877/DE290R-11096enThe American Physical SocietyPhysical Review Letters530Exploring Phase Coherence in a 2D Lattice of Bose-Einstein Condensates10.1103/PhysRevLett.87.160405article (journal)