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Splitting Single-Photon Polarization State with Weak Cross—Kerr Nonlinearity |
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| Authors: | RUI Pin-Shu XIONG Kuang-Wei ZHANG Wen ZHANG Zi-Yun |
| Affiliation: | 1. Anhui Xinhua University, Hefei 230088, China;2. Department of Physics, East China Jiaotong University, Nanchang 330013, China;3. Key Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China, School of Physics & Material Science, Anhui University, Hefei 230039, China;4. School of Physics & Material Science, Anhui University, Hefei 230039, China |
| Abstract: | We propose a three-party scheme for quantum information splitting (QIS) of an arbitrary single-photon polarization state based on weak cross-Kerr nonlinearity combined with linear optics elements such as polarization beam splitters (PBSs) and half wave plates (HWPs). The scheme is generalized to the arbitrary-party case. With the help of quantum nondemolition (QND) measurements, our schemes can be accomplished in an almost deterministic way. The two schemes are feasible with the current technology. |
| Keywords: | quantum information splitting cross-Kerr nonlinearity quantum nondemolition (QND) measurement linear optics element |
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