Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.88.022304
Title: Entanglement witnesses with variable number of local measurements
Authors: Laskowski, W.
Markiewicz, M.
Paterek, T. 
Weinar, R.
Issue Date: 5-Aug-2013
Citation: Laskowski, W., Markiewicz, M., Paterek, T., Weinar, R. (2013-08-05). Entanglement witnesses with variable number of local measurements. Physical Review A - Atomic, Molecular, and Optical Physics 88 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.88.022304
Abstract: 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 identifiers are in the form of sums of non-negative functions of correlations in a quantum state, mostly squares of correlations, and we illustrate their use and strengths on various examples. © 2013 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/116327
ISSN: 10502947
DOI: 10.1103/PhysRevA.88.022304
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