We introduce and demonstrate experimentally a physical process, named quantum joining, in which the two-dimensional quantum states (qubits) of two input photons are combined into a single output photon, within a four-dimensional Hilbert space. © OSA 2014.
Joining the quantum state of two photons into one / Vitelli, Chiara; Spagnolo, Nicolò; Sciarrino, Fabio; Santamato, Enrico; Marrucci, Lorenzo. - (2014). ((Intervento presentato al convegno Quantum Information and Measurement, QIM 2014 tenutosi a Berlin; Germany nel 18 - 20 Mar 2014.