| Autor: |
B-H, Liu, S, Wißmann, X-M, Hu, C, Zhang, Y-F, Huang, C-F, Li, G-C, Guo, A, Karlsson, J, Piilo, H-P, Breuer |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Scientific Reports |
| ISSN: |
2045-2322 |
| Popis: |
The modeling and analysis of the dynamics of complex systems often requires to employ non-Markovian stochastic processes. While there is a clear and well-established mathematical definition for non-Markovianity in the case of classical systems, the extension to the quantum regime recently caused a vivid debate, leading to many different proposals for the characterization and quantification of memory effects in the dynamics of open quantum systems. Here, we derive a mathematical representation for the non-Markovianity measure based on the exchange of information between the open system and its environment, which reveals the locality and universality of non-Markovianity in the quantum state space and substantially simplifies its numerical and experimental determination. We further illustrate the application of this representation by means of an all-optical experiment which allows the measurement of the degree of memory effects in a photonic quantum process with high accuracy. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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