Entanglement witnesses with variable number of local measurements

• Main Authors: Laskowski, Wiesław, Markiewicz, Marcin, Paterek, Tomasz, Weinar, Ryszard
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Chemistry::Physical chemistry::Quantum chemistry
• Online Access: https://hdl.handle.net/10356/101837; http://hdl.handle.net/10220/18763
• Institution: Nanyang Technological University

We present a class of entanglement identifiers which has the following experimentally friendly feature: once the expectation value of the identifier exceeds some definite limit, we can conclude the state is entangled, even if not all measurements defining the identifier have been performed. These id...