Quantum entanglement from random measurements

• Main Authors: Tran, Minh Cong, Dakić, Borivoje, Arnault, François, Laskowski, Wiesław, Paterek, Tomasz
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2015
• Subjects: Physics & Applied Physics
• Online Access: https://hdl.handle.net/10356/81127; http://hdl.handle.net/10220/39125
• Institution: Nanyang Technological University

We show that the expectation value of squared correlations measured along random local directions is an identifier of quantum entanglement in pure states, which can be directly experimentally assessed if two copies of the state are available. Entanglement can therefore be detected by parties who do...