تقرير
Device-independent Verification of Quantum Coherence without Quantum Control
| العنوان: | Device-independent Verification of Quantum Coherence without Quantum Control |
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| المؤلفون: | Yang, Yan-Han, Yang, Xue, Zheng, Xing-Zhou, Luo, Ming-Xing |
| المصدر: | Cell Reports Physical Science, Volume 4, Issue 12, 20 December 2023, 101725 |
| سنة النشر: | 2024 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | Quantum coherence plays a crucial role in manipulating and controlling quantum systems, leading to breakthroughs in various fields such as quantum information, quantum sensing, and the detection of gravitational waves. Most coherence witnesses rely on the assumption of being able to control quantum states. Here we report a device-independent coherence model by extending the standard Bell theory to multiple source scenarios. We propose a Greenberger-Horne-Zeilinger-type paradox to verify the particle and wave behaviors of a coherent carrier. We experimentally generate generalized two-photon entangled states that violate the present paradox, witnessing spatial quantum superposition through local measurements. Comment: 19 pages, 7 figures (Almost publish version) |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.xcrp.2023.101725 |
| URL الوصول: | http://arxiv.org/abs/2404.09435 |
| رقم الأكسشن: | edsarx.2404.09435 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.xcrp.2023.101725 |
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