دورية أكاديمية
Entanglement-interference complementarity and experimental demonstration in a superconducting circuit
| العنوان: | Entanglement-interference complementarity and experimental demonstration in a superconducting circuit |
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| المؤلفون: | Xin-Jie Huang, Pei-Rong Han, Wen Ning, Shou-Bang Yang, Xin Zhu, Jia-Hao Lü, Ri-Hua Zheng, Hekang Li, Zhen-Biao Yang, Kai Xu, Chui-Ping Yang, Qi-Cheng Wu, Dongning Zheng, Heng Fan, Shi-Biao Zheng |
| المصدر: | npj Quantum Information, Vol 9, Iss 1, Pp 1-6 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Physics LCC:Electronic computers. Computer science |
| مصطلحات موضوعية: | Physics, QC1-999, Electronic computers. Computer science, QA75.5-76.95 |
| الوصف: | Abstract Quantum entanglement between an interfering particle and a detector for acquiring the which-path information plays a central role for enforcing Bohr’s complementarity principle. However, the quantitative relation between this entanglement and the fringe visibility remains untouched upon for an initial mixed state. Here we find an equality for quantifying this relation. Our equality characterizes how well the interference pattern can be preserved when an interfering particle, initially carrying a definite amount of coherence, is entangled, to a certain degree, with a which-path detector. This equality provides a connection between entanglement and interference in the unified framework of coherence, revealing the quantitative entanglement-interference complementarity. We experimentally demonstrate this relation with a superconducting circuit, where a resonator serves as a which-path detector for an interfering qubit. The measured fringe visibility of the qubit’s Ramsey signal and the qubit-resonator entanglement exhibit a complementary relation, in well agreement with the theoretical prediction. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2056-6387 |
| Relation: | https://doaj.org/toc/2056-6387 |
| DOI: | 10.1038/s41534-023-00714-8 |
| URL الوصول: | https://doaj.org/article/5a0f0269bb494c0583cb868e4024981d |
| رقم الأكسشن: | edsdoj.5a0f0269bb494c0583cb868e4024981d |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20566387 |
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| DOI: | 10.1038/s41534-023-00714-8 |