Král, PetrShapiro, Moshe2004-12-032004-12-0320012001http://hdl.handle.net/2003/145410.17877/DE290R-11259enThe American Physical SocietyPhysical Review Letters530Cyclic Population Transfer in Quantum Systems with Broken Symmetry10.1103/PhysRevLett.87.183002article (journal)