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■-nucleus dynamics: from quasibound states to kaon condensation
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作者 A.Gal 《Chinese Physics C》 SCIE CAS CSCD 2010年第9期1169-1174,共6页
Coupled-channel KN dynamics near threshold and its repercussions in few-body K-nuclear systems are briefly reviewed,highlighting studies of a K - pp quasibound state.In heavier nuclei,the extension of mean-field calcu... Coupled-channel KN dynamics near threshold and its repercussions in few-body K-nuclear systems are briefly reviewed,highlighting studies of a K - pp quasibound state.In heavier nuclei,the extension of mean-field calculations to multi-K nuclear and hypernuclear quasibound states is discussed.It is concluded that strangeness in finite self-bound systems is realized through hyperons,with no room for kaon condensation. 展开更多
关键词 KN dynamics K-nuclear quasibound states kaon condensation
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基于双准偶然连续体束缚态模式的传感与慢光研究
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作者 陈莎 刘钦柯 +4 位作者 李燕 周尧杰 陆振东 罗晓清 王新林 《激光与光电子学进展》 CSCD 北大核心 2024年第13期399-407,共9页
近年来,光学超表面中的连续体束缚态(BIC)因其独特的性质而受到了广泛的关注。为了研究两个准偶然连续体束缚态(A-QBIC)模式之间相互作用诱导的新颖光学现象,提出一种方形纳米孔阵列全介质超表面。结果表明,在x偏振光和y偏振光入射时能... 近年来,光学超表面中的连续体束缚态(BIC)因其独特的性质而受到了广泛的关注。为了研究两个准偶然连续体束缚态(A-QBIC)模式之间相互作用诱导的新颖光学现象,提出一种方形纳米孔阵列全介质超表面。结果表明,在x偏振光和y偏振光入射时能实现A-BIC现象,尤其在45°偏振光入射下可实现两个A-QBIC模式间的相互作用。利用能带理论和多极展开理论对A-QBIC模式进行分析,发现这两种模式均由环形偶极模式主导。重要的是,基于A-QBIC模式的高Q值特性,能够构建高灵敏度折射率传感,同时利用两个A-QBIC模式间具有灵活调谐度的相互作用特性,还能够实现类电磁诱导透明和可调的慢光。研究结果可为基于A-QBIC的高Q超构器件在高灵敏度折射率传感及慢光等领域的应用提供理论参考。 展开更多
关键词 全介质超表面 连续体束缚态 准偶然连续体束缚态 折射率传感 慢光
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Theoretical research on proton halos in exotic nuclei
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作者 倪冬冬 任中洲 《Chinese Physics C》 SCIE CAS CSCD 2017年第11期89-94,共6页
Very neutron-deficient nuclei are investigated with Woods-Saxon potentials,especially the newly measured A =2Z-1 nucleus 65As [X.L.Tu et al.,Phys.Rev.Lett.106,112501(2011)],where the experimental proton separation e... Very neutron-deficient nuclei are investigated with Woods-Saxon potentials,especially the newly measured A =2Z-1 nucleus 65As [X.L.Tu et al.,Phys.Rev.Lett.106,112501(2011)],where the experimental proton separation energy is obtained as-90(85) keV for the first time.Careful consideration is given to quasibound protons with outgoing Coulomb wave boundary conditions.The observed proton halos in the first excited state of 17F and in the ground states of 26,27,28P are reproduced well,and predictions of proton halos are made for the ground states of 56,57Cu and 65As.The sensitivity of the results to the proton separation energy is discussed in detail,together with the effect of the l=1 centrifugal barrier on proton halos. 展开更多
关键词 proton halo valence proton quasibound state
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