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10 papers · 2 filters
Efficient faithful qubit transmission with frequency degree of freedom
Xi-Han Li, Bao-Kui Zhao, Yu-Bo Sheng +2
We propose an efficient faithful polarization-state transmission scheme by utilizing frequency degree of freedom besides polarization and an additional qubit prepared in a fixed po…
Phase Reversal Diffraction in incoherent light
Su-Heng Zhang, Shu Gan, De-Zhong Cao +3
Phase reversal occurs in the propagation of an electromagnetic wave in a negatively refracting medium or a phase-conjugate interface. Here we report the experimental observation of…
Hierarchical quantum information splitting
Xin-Wen Wang, Li-Xin Xia, Zhi-Yong Wang
We present a scheme for asymmetric quantum information splitting, where a sender distributes asymmetrically a qubit to distant agents in a network. The asymmetric distribution lead…
Genuine tripartite entanglement in quantum brachistochrone evolution of a three-qubit system
Bao-Kui Zhao, Fu-Guo Deng, Feng-Shou Zhang +1
We explore the connection between quantum brachistochrone (time-optimal) evolution of a three-qubit system and its residual entanglement called three-tangle. The result shows that…
Single-photon entanglement concentration for long-distance quantum communication
Yu-Bo Sheng, Fu-Guo Deng, Hong-Yu Zhou
We present a single-photon entanglement concentration protocol for long-distance quantum communication with quantum nondemolition detector. It is the first concentration protocol f…
Coulomb blockade double-dot Aharonov-Bohm interferometer: harmonic decomposition of the interference pattern
Feng Li, HuJun Jiao, Hui Wang +2
For the solid state double-dot interferometer, the phase shifted interference pattern induced by the interplay of inter-dot Coulomb correlation and multiple reflections is analyzed…