Abstract
We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of 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.
- Received 30 March 2007
DOI:https://doi.org/10.1103/PhysRevLett.99.193602
©2007 American Physical Society