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Simple scheme for expanding photonic cluster states for quantum information
| Title: | Simple scheme for expanding photonic cluster states for quantum information |
| Authors: | Kalasuwan, P. Browse this author | | Mendoza, G. Browse this author | | Laing, A. Browse this author | | Nagata, T. Browse this author | | Coggins, J. Browse this author | | Callaway, M. Browse this author | | Takeuchi, S. Browse this author →KAKEN DB | | Stefanov, A. Browse this author | | O'Brien, J. L. Browse this author |
| Issue Date: | 1-Jun-2010 |
| Publisher: | Optical Society of America |
| Journal Title: | Journal of the Optical Society of America B: Optical Physics |
| Volume: | 27 |
| Issue: | 6 |
| Start Page: | A181 |
| End Page: | A184 |
| Publisher DOI: | 10.1364/JOSAB.27.00A181 |
| Abstract: | We show how an entangled cluster state encoded in the polarization of single photons can be straightforwardly expanded by deterministically entangling additional qubits encoded in the path degree of freedom of the constituent photons. This can be achieved using a polarization-path controlled-phase gate. We experimentally demonstrate a practical and stable realization of this approach by using a Sagnac interferometer to entangle a path qubit and polarization qubit on a single photon. We demonstrate precise control over phase of the path qubit to change the measurement basis and experimentally demonstrate properties of measurement-based quantum computing using a two-photon, three-qubit cluster state. |
| Rights: | © 2010 Optical Society of America |
| Type: | article |
| URI: | http://hdl.handle.net/2115/49851 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 竹内 繁樹
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