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| 1 | Spin in the extended electron model显示文摘扩大电子的一个模型是适合描述经由扫描掘显微镜获得的理论模拟和试验性的结果的更多,这被发现了,但是当动态性质容易被合并时,磁性,并且特别地电子旋转性质当测量不在时由于他们的构思的 isotropy 提出一个问题。一个电子的旋转与一个磁场反应并且因此有向量的性质。然而,电子纺纱也是各向同性的,建议它没有向量的性质。在对电子旋转的描述的这中央冲突,我们相信,矛盾的性质的许多的根为量旋转粒子被测量并且要求。利用电子旋转在真实三维的空间一致地在被描述的一个模型 -- 一个扩大电子模型 -- 我们证明纺纱可以被向量描述并且仍然维持它的 isotropy。在这个框架,我们重新估计连续大小的 Stern-Gerlach 实验, Einstein-Podolsky-Rosen 实验,和效果并且在所有情况中发现相当直觉的解释。 | Thomas Pope Werner Hofer | 2017 | Frontiers of physics2017，12，3： | 3 |
| 2 | Simultaneous measurement-device-independent continuous variable quantum key distribution with realistic detector compensation显示文摘We propose a novel scheme for measurement-device-independent(MDI)continuous-variable quantum key distribution(CVQKD)by simultaneously conducting classical communication and QKD,which is called“simultaneous MDI-CVQKD”protocol.In such protocol,each sender(Alice,Bob)can superimpose random numbers for QKD on classical information by taking advantage of the same weak coherent pulse and an untrusted third party(Charlie)decodes it by using the same coherent detectors,which could be appealing in practice due to that multiple purposes can be realized by employing only single communication system.What is more,the proposed protocol is MDI,which is immune to all possible side-channel attacks on practical detectors.Security results illustrate that the simultaneous MDI-CVQKD protocol can secure against arbitrary collective attacks.In addition,we employ phase-sensitive optical amplifiers to compensate the imperfection existing in practical detectors.With this technology,even common practical detectors can be used for detection through choosing a suitable optical amplifier gain.Furthermore,we also take the finite-size effect into consideration and show that the whole raw keys can be taken advantage of to generate the final secret key instead of sacrificing part of them for parameter estimation.Therefore,an enhanced performance of the simultaneous MDI-CVQKD protocol can be obtained in finite-size regime. | Xiao-Dong Wu Yi-Jun Wang Duan Huang Ying Guo | 2020 | Frontiers of physics2020，15，3： | 2 |
| 3 | A two-density approach to the general many-body problem and a proof of principle for small atoms and molecules显示文摘An extended electron model fully recovers many of the experimental results of quantum mechanics while it avoids many of the pitfalls and remains generally free of paradoxes. The formulation of the manybody electronic problem here resembles the Kohn Sham formulation of standard density functional theory. However, rather than referring electronic properties to a large set of single electron orbitals, the extended electron model uses only mass density and field components, leading to a substantial increase in computational efficiency. To date, the Hohenberg-Kohn theorems have not been proved for a model of this type, nor has a universal energy functional been presented. In this paper, we address these problems and show that the Hohenberg Kohn theorems do also hold for a density model of this type. We then present a proof^of^concept practical implementation of this method and show that it reproduces the accuracy of more widely used methods on a test-set of small atomic systems, thus paving the way for the development of fast, efficient and accurate codes on this basis. | Thomas Pope Werner Hofer | 2019 | Frontiers of physics2019，14，2： | 1 |
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