Generation of symmetric Dicke states of remote qubits with linear optics.
We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of N massive particles or in the polarization degrees of freedom of photonic qubits, using linear optical tools only. By means of a suitable multiphoton detection technique, erasing Welcher-Weg information, our proposed scheme allows the generation and measurement of an important class of entangled multiqubit states.
Thiel
C
C
Institut für Optik, Information und Photonik, Max-Planck Forschungsgruppe, Universität Erlangen-Nürnberg, 91058, Erlangen, Germany. cthiel@optik.uni-erlangen.de
von Zanthier
J
J
Bastin
T
T
Solano
E
E
Agarwal
G S
GS