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arXiv · 1006.2225

Demonstration of Cluster State Shaping and Quantum Erasure for Continuous Variables

Yoshichika Miwa·Ryuji Ukai·Jun-ichi Yoshikawa·Radim Filip·Peter van Loock·Akira Furusawa
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Abstract

We demonstrate experimentally how to remove an arbitrary node from a continuous-variable cluster state and how to shorten any quantum wires of such a state. These two basic operations, performed in an unconditional fashion, are a manifestation of quantum erasure and can be employed to obtain various graph states from an initial cluster state. Starting with a sufficiently large cluster, the resulting graph states can then be used for universal quantum information processing. In the experiment, all variations of this cluster-shaping are demonstrated on a four-mode linear cluster state through homodyne measurements and feedforward.

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Yoshichika Miwa, Ryuji Ukai, Jun-ichi Yoshikawa, Radim Filip, Peter van Loock, Akira Furusawa. 2010-06-11. Demonstration of Cluster State Shaping and Quantum Erasure for Continuous Variables. https://doi.org/10.1103/physreva.82.032305

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