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6 November 2018 How useful is a single entanglement witness? (Conference Presentation)
Joonwoo Bae
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Proceedings Volume 10771, Quantum Communications and Quantum Imaging XVI; 1077111 (2018) https://doi.org/10.1117/12.2320135
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States
Abstract
Entanglement detection is one of the most fundamental and practical tasks for quantum information processing. The framework of entanglement witnesses provides an experimentally feasible method detecting entangled states. Although It is clear that no entanglement witness per se can detect all entangled states, little is known about how useful a single entanglement witness is. In this work, we show that an entanglement witness can construct another entanglement witness. This means that the same measurement outcomes can be repeatedly applied to constructing different entanglement witnesses.
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Joonwoo Bae "How useful is a single entanglement witness? (Conference Presentation)", Proc. SPIE 10771, Quantum Communications and Quantum Imaging XVI, 1077111 (6 November 2018); https://doi.org/10.1117/12.2320135
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KEYWORDS
Entangled states
Quantum information processing
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