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Near-deterministic efficient all-optical quantum computation |
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| Authors: | Nguyen Ba An Kisik KimJaewan Kim |
| Affiliation: | a Institute of Physics, 10 Dao Tan, Thu Le, Ba Dinh, Hanoi, Viet Nam b Department of Physics, Inha University, 253 Yonghyun-Dong, Nam-Gu, Incheon 402-751, Republic of Korea c Korea Institute for Advanced Study, 207-43 Cheongryangni 2-dong, Dongdaemun-gu, Seoul 130-722, Republic of Korea |
| Abstract: | We propose a flexible scheme to prepare various kinds of useful entangled coherent states using weak cross-Kerr nonlinearities and strong laser fields. We then show that, with such entangled states as off-line resources, near-deterministic quantum gates needed for coherent-state-based quantum computation can be efficiently implemented by means of in-line linear-optics elements. |
| Keywords: | Coherent state qubits Entangled coherent states Quantum gates |
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