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狄拉克半金属中的Efimov效应
董洪光 2018-7-19 17:02
狄拉克半金属中的Efimov效应 早在 1970 年, Vitaly Efimov 教授研究接触相互作用的全同波色子的三体问题时发现体系有无穷多个奇异的三体束缚态 ,这些束缚态的能量满足等比级数的关系 E n = E 0 exp(-2π n / s 0 ) 。这一现象之后被称为 Efimov 效 ...
5033 次阅读|没有评论
基于Fabry-Pérot共振机制的完美集中器
董洪光 2018-7-19 16:58
基于 Fabry-Pérot 共振机制的完美集中器 变换光学 告诉我们:空间里介质材料的电磁参数可以和该空间的度量性质等价。根据这样的等价关系,我们可以将非均匀材料中光线的弯曲行为看成是空间的弯曲。另外,我们也可以根据坐标变换的方法设计能够实现特定功能的材料。 2006 年, Pendry 及其合作 ...
2357 次阅读|没有评论
绝缘态颗粒膜导电特性的广义解释:临界路径理论的新观点
董洪光 2018-7-19 16:53
绝缘态颗粒膜导电特性的广义解释:临界路径理论的新观点 由于真空镀磨技术的飞跃进步与普及,绝缘体 - 导体复合物( insulator-conductor composites )颗粒膜的物性研究一直是一个兼具基础与应用双重意义的课题。其中,处于绝缘态的颗粒膜的导电行为已经被研究了半个多世纪。几十年 ...
3315 次阅读|没有评论
frontiers of physics, 2018(3)
董洪光 2018-6-11 15:16
Cover Since the discovery of graphene in 2004, many other 2D materials with unique properties and promising applications have been developed, which directly resulted in this special topic. Besides experimental investigations, computational/theoretical studies also played an important ro ...
2713 次阅读|没有评论
frontiers of physics, 2018(2)
董洪光 2018-6-11 15:10
Cover The search for and study of exotic quantum states in novel low-dimensional quantum materials havetriggered extensive research in recent years. In our recent paper, we proposed that the realization of ferromagnetism in the newly discovered two-dimensional quantum material C 3 N ...
2403 次阅读|没有评论
frontiers of physics, 2018(1)
董洪光 2018-6-11 15:04
Cover The special topic edited by F. Mallamace, R. Car Limei Xu reports eleven contributions jointly written by lecturers and students attending the 2016 “Ettore Majorana” Erice International School on Water and Water Systems. These papers focus on the study of water and its so ...
2321 次阅读|没有评论
frontiers of physics, 2017(6)
董洪光 2018-6-11 14:51
Cover As a universal concept in nonlinear science, synchronization has been broadly interested and extensively studied over the past decades. Whereas numerical and theoretical studies have unveiled abundant synchronization phenomena in coupled oscillators, few of them have been repl ...
1827 次阅读|没有评论
frontiers of physics, 2017(4)
董洪光 2017-6-29 15:47
Cover Graphene based all-carbon nano-junction is structurally stable and mechanically flexible. It has been extensively recognized as a good candidate of nanoscale electronic andspin-electronic device. Jian-Wei Li et al. investigated the electronicand thermal electronic transport prope ...
3163 次阅读|没有评论
frontiers of physics, 2017(3)
董洪光 2017-6-5 16:10
Cover The physics of huge magnetoresistance in WTe 2 requires fullanalysis of multiple elecctronic components. Xing-Chen Pan et al . combined magnetotransport and angle-resolved photoemission spectroscopy to study the electronic structures of WTe 2 . By analyzing the magnetoresista ...
3899 次阅读|没有评论

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