1. Efficient scheme for experimental quantification of non-Markovianity in high-dimensional systems.
- Author
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Dong, S. -J., B. -H., Liu, Han, Y. -J., G. -C., Guo, and Lixin He
- Subjects
- *
QUANTUM mechanics , *QUANTUM information theory , *MARKOV processes , *PREDICATE calculus - Abstract
The non-Markovianity is a prominent concept of the dynamics of open quantum systems, which is of fundamental importance in quantum mechanics and quantum information. Despite lots of efforts, the experimental measurement of non-Markovianity of an open system is still limited to very small systems. Presently, it is still impossible to experimentally quantify the non-Markovianity of high-dimensional systems with the widely used Breuer-Laine-Piilo trace distance measure. In this paper, we propose a method, combining experimental measurements and numerical calculations, that allow quantifying the non-Markovianity of an N-dimensional system only scaled as N2, successfully avoiding the exponential scaling with the dimension of the open system in the current method. After the benchmark with a two-dimensional open system, we demonstrate the method in quantifying the non-Markovanity of a high-dimensional open quantum random walk system. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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