Direct measurement of the concurrence for two-qubit electron spin entangled pure state based on charge detection
Liu Jionga), b) , Zhou Lana), c) , Sheng Yu-Bo†a), b) 
Direct measurement of the concurrence for two-qubit electron spin entangled pure state based on charge detection |
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Liu Jiong
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| Schematic diagram showing the principle of the direct measurement of the concurrence of two-qubit electron entangled pure states. It consists of three PCM gates which have been described in Section 2. In each round of the PCM, we pick up the cases which make the charge detector detect odd parity (0 or 2 electrons). We perform a Hadamard operation on the electrons in spatial modes b2 and d2, instead of letting them directly pass through the PBS3. |
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