Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
The cover shows the input stage of a setup to produce single‐particle entangled states of photons where the momentum and polarization degrees of freedom are entangled (see the formula). A classical light source formed by a green light‐emitting diode is used. The data in the plot show the violation of the Bell inequality by the single‐particle entangled states. Pictorially a Schrödinger cat is testing the photon beam (image author Bianca Moretti). For further details on single‐particle entanglement see the Review by Lorenzo Pavesi and co‐workers, article number 2000014.