publication . Preprint . 2018

Estimating localizable entanglement from witnesses

Amaro, David; Müller, Markus; Pal, Amit Kumar;
Open Access English
  • Published: 07 Mar 2018
Abstract
Computing localizable entanglement for noisy many-particle quantum states is difficult due to the optimization over all possible sets of local projection measurements. Therefore, it is crucial to develop lower bounds, which can provide useful information about the behaviour of localizable entanglement, and which can be determined by measuring a limited number of operators, or by performing least number of measurements on the state, preferably without performing a full state tomography. In this paper, we adopt two different yet related approaches to obtain a witness-based, and a measurement-based lower bounds for localizable entanglement. The former is determined...
Subjects
arxiv: Quantum Physics
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