تقرير
Quantifying High-Order Interdependencies in Entangled Quantum States
| العنوان: | Quantifying High-Order Interdependencies in Entangled Quantum States |
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| المؤلفون: | Javarone, Marco Alberto, Rosas, Fernando E., Facchi, Paolo, Pascazio, Saverio, Stramaglia, Sebastiano |
| المصدر: | Phys. Rev. A 109, 042605 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | Here, we leverage recent advances in information theory to develop a novel method to characterise the dominant character of the high-order dependencies of quantum systems. To this end, we introduce the Q-information: an information-theoretic measure capable of distinguishing quantum states dominated by synergy or redundancy. We illustrate the measure by investigating the properties of paradigmatic entangled Qubit states and find that -- in contrast to classical systems -- quantum systems need at least four variables to exhibit high-order properties. Furthermore, our results reveal that unitary evolution can radically affect the internal information organisation in a way that strongly depends on the corresponding Hamiltonian. Overall, the Q-information sheds light on novel aspects of the internal organisation of quantum systems and their time evolution, opening new avenues for studying several quantum phenomena and related technologies. Comment: 7 pages, 3 figures, 1 table |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.109.042605 |
| URL الوصول: | http://arxiv.org/abs/2310.03681 |
| رقم الأكسشن: | edsarx.2310.03681 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.109.042605 |
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