| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Parallel generation of 31 tripartite entangled states based on optical frequency combs |
| Jing Zhang(张静)1,2,3, Yan-Fang Wang(王艳芳)1,2, Xiao-Yu Liu(刘晓宇)1,2, Rong-Guo Yang(杨荣国)1,2,3 |
1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan 030006, China;
2. College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China;
3. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China |
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Abstract Quantum entangled states, especially those having particular properties, are key resources for quantum information and quantum computation. In this paper, we put forward a new scheme to produce 31 continuous-variable (CV) tripartite entanglement fields based on three optical frequency combs via cascade nonlinear processes in an optical parametric cavity, and investigate the spectral characteristics of three frequency combs. The center wavelengths of the three combs are designed as 852 nm, 780 nm (atomic transition lines), and 1550 nm (fiber communication wavelength). The positivity under partial transposition (PPT) criterion, which is sufficient and necessary, is used to evaluate the entanglement in each group of comb lines. This scheme is experimentally feasible and valuable for constructing quantum information networks in future.
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Received: 05 June 2017
Revised: 03 August 2017
Accepted manuscript online:
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PACS:
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42.50.-p
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(Quantum optics)
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42.65.-k
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(Nonlinear optics)
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42.50.Lc
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(Quantum fluctuations, quantum noise, and quantum jumps)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11504218, 11634008, 11674203, 11574187, 61108003, and 61227902), and the National Key Research and Development Program of China (Grant No. 2016YFA0301404). |
Corresponding Authors:
Jing Zhang
E-mail: zjj@sxu.edu.cn
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Cite this article:
Jing Zhang(张静), Yan-Fang Wang(王艳芳), Xiao-Yu Liu(刘晓宇), Rong-Guo Yang(杨荣国) Parallel generation of 31 tripartite entangled states based on optical frequency combs 2017 Chin. Phys. B 26 124205
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