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Extremal Entangled Four-Qubit Pure States with Respect to Multiple Entropy Measures |
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| Authors: | LIU Dan ZHAO Xin LONG Gui-Lu |
| Institution: | 1. Department of Physics, Tsinghua University, Beijing 100084, China ;2. Center of Quantum Information Science and Technology, Tsinghua University, Beijing 100084, China ;3. School of Science, Dalian Nationalities University, Dalian 116600, China ;4. Key Laboratory for Atomic and Molecular, Nano-Sciences, Tsinghua University, Beijing 100084, China |
| Abstract: | Four-qubit entanglement has been investigated using a recent proposed entanglement measure, multiple entropy measures (MEMS). We have performed optimization for the nine different families of states of four-qubit system. Some extremal entangled states have been found. |
| Keywords: | four-qubit entanglement multiple entanglement measures |
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