2004
- 
                    
                            M. Bourennane; M. Eibl; S. Gaertner; C. Kurtsiefer; A. Cabello; H. Weinfurter
                    
                    
                    
 Decoherence-free quantum information processing with four-photon entangled states
 Phys. Rev. Lett. 92, 107901 (2004)
- 
                    
                            M. Bourennane; M. Eibl; C. Kurtsiefer; S. Gaertner; H. Weinfurter; O. Gühne, P. Hyllus, D. Bruß, M. Lewenstein, and A. Sanpera
                    
                    
                    
 Experimental detection of multipartite entanglement using witness operators
 Phys. Rev. Lett. 92, 087902 (2004)
- 
                    
                            M. Eibl; N. Kiesel; M. Bourennane; C. Kurtsiefer; H. Weinfurter
                    
                    
                    
 Experimental realization of a three-qubit entangled W state
 Phys. Rev. Lett. 92, 077901 (2004)
- 
                    
                            P. Trojek; C. Schmid; M. Bourennane; C. Kurtsiefer; H. Weinfurter
                    
                    
                    
 Compact source of polarization-entangled photon pairs
 Optics Express 12, 276-281 (2004)
 
 