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Cover Picture: Entanglement Purification of Nonlocal Quantum‐Dot‐Confined Electrons Assisted by Double‐Sided Optical Microcavities (Ann. Phys. 4/2018)
Author(s) -
Liu ZiChao,
Hong JianSong,
Guo JiaJie,
Li Tao,
Ai Qing,
Alsaedi Ahmed,
Hayat Tasawar,
Deng FuGuo
Publication year - 2018
Publication title -
annalen der physik
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201870018
Subject(s) - quantum entanglement , physics , electron , photon , quantum mechanics , quantum , quantum computer , quantum information science , quantum optics
Quantum Computing The parity‐check detector (PCD) is an attractive building block for distributed quantum computation and quantum communication. The PCD for electrons proposed in article number 1800029 by Tao Li, Fu‐Guo Deng and co‐workers is constructed in a parallel structure assisted by a polarization‐entangled photon pair, which significantly improves the distance between two electrons for detection. Using the PCD, the parties in quantum communication can increase the entanglement purification efficiency and simultaneously decrease the quantum sources consumed for some particular fidelity thresholds with suitable arrangements.