Back to Search
Start Over
Universal Steering Criteria.
- Source :
-
Physical Review Letters . Feb2016, Vol. 116 Issue 7, p1-1. 1p. - Publication Year :
- 2016
-
Abstract
- We propose a general framework for constructing universal steering criteria that are applicable to arbitrary bipartite states and measurement settings of the steering party. The same framework is also useful for studying the joint measurement problem. Based on the data-processing inequality for an extended Rényi relative entropy, we then introduce a family of steering inequalities, which detect steering much more efficiently than those inequalities known before. As illustrations, we show unbounded violation of a steering inequality for assemblages constructed from mutually unbiased bases and establish an interesting connection between maximally steerable assemblages and complete sets of mutually unbiased bases. We also provide a single steering inequality that can detect all bipartite pure states of full Schmidt rank. In the course of study, we generalize a number of results intimately connected to data-processing inequalities, which are of independent interest. [ABSTRACT FROM AUTHOR]
- Subjects :
- *QUANTUM entanglement
*BIPARTITE graphs
*QUANTUM measurement
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 116
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 116938504
- Full Text :
- https://doi.org/10.1103/PhysRevLett.116.070403