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Content Provider | Springer Nature Link |
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Author | Zhong, Daili Wang, Yijun Guo, Ying |
Copyright Year | 2017 |
Abstract | Entangling quantum systems at distant locations is a newly discovered counterintuitive phenomenon. However, the generation effect will be reduced by imperfections of practical devices. In this paper, we demonstrate a Gaussian process approach for the scheme design of multipartite continuous-variable (CV) entanglement generation and distribution by using separable Gaussian states, which are superimposed on the beam splitters with the single auxiliary state, rendering the desirable CV entangled states. The superimposing operation not only can avoid the complexity and imperfection of the practical state-superimposing operations, which defends the eavesdropper as the auxiliary mode which is separable, but also can be regulated flexibly by performing suitable displacements with the regulated parameter of the initial states before being sent to the beam splitters to optimize the performance. |
Starting Page | 1685 |
Ending Page | 1693 |
Page Count | 9 |
File Format | |
ISSN | 00207748 |
Journal | International Journal of Theoretical Physics |
Volume Number | 56 |
Issue Number | 5 |
e-ISSN | 15729575 |
Language | English |
Publisher | Springer US |
Publisher Date | 2017-02-22 |
Publisher Place | New York |
Access Restriction | One Nation One Subscription (ONOS) |
Subject Keyword | Quantum key distribution Multipartite entanglement Gaussian states Auxiliary states Physics Quantum Physics Elementary Particles, Quantum Field Theory Theoretical, Mathematical and Computational Physics |
Content Type | Text |
Resource Type | Article |
Subject | Physics and Astronomy Mathematics |
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