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Quantifying Non-Markovianity with Temporal Steering.
- Source :
-
Physical Review Letters . Jan2016, Vol. 116 Issue 2, p1-1. 1p. - Publication Year :
- 2016
-
Abstract
- Einstein-Podolsky-Rosen (EPR) steering is a type of quantum correlation which allows one to remotely prepare, or steer, the state of a distant quantum system. While EPR steering can be thought of as a purely spatial correlation, there does exist a temporal analogue, in the form of single-system temporal steering. However, a precise quantification of such temporal steering has been lacking. Here, we show that it can be measured, via semidefinite programing, with a temporal steerable weight, in direct analogy to the recently proposed EPR steerable weight. We find a useful property of the temporal steerable weight in that it is a nonincreasing function under completely positive trace-preserving maps and can be used to define a sufficient and practical measure of strong non-Markovianity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *EINSTEIN-Podolsky-Rosen experiment
*QUANTUM correlations
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 116
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 116938305
- Full Text :
- https://doi.org/10.1103/PhysRevLett.116.020503