Experimental Demonstration of a Quantum Nondemolition Gate
Yoshichika Miwa, Jun–ichi Yoshikawa, Alexander Huck, Ulrik L. Andersen, Peter van Loock, Akira Furusawa, Alexander I. Lvovsky · AIP conference proceedings · 2009
We experimentally demonstrate a quantum nondemolition (QND) gate which is a continuous variable analogue of a qubit controlled‐NOT gate. The QND gate is shown to entangle two initially separable coherent states, which will find uses in cluster state computation.