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<正>[导读]奥地利因斯布鲁克大学和量子光学与量子信息研究所的科学家在冷原子系统中观测到一种特殊的巨型量子三体态——叶菲莫夫激发态(Efimov态)。科技日报柏林11月14日电(记者李山)奥地利因斯布鲁克大学和量子光学与量子信息研究所的科学家 相似文献
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赵凡 《科技成果管理与研究》2013,(7):10-11
量子计算与量子信息是一个多学科的交叉研究课题,同时也是各种不同形式研究的交叉,涉及量子力学、信息学、计算机科学、密码学、数学、物理学的多个分支,如凝聚态物理、原子分子物理、光学等。清华大学物理系核物理教研室主任龙桂鲁从1998年开始进行量子计算与量子信息的研究工作,在他看来,量子计算与量子信息的研究是一个潜在的高新技术研究,如果量子计算机一旦真正运用,那会带来一个新的时代。作为量子计算和量子通信领域的探路者,多年来,龙桂鲁在这一领域开拓创新,取得了许多令世界瞩目的研究成果。他领导团队提出首个量子安全直接通信方案,开辟和引导了该研究方向;提出首个多方高维密集编码模型,发展了分布式量子通信理论;提出了分步传输和块传输方法;建立了量子搜索相位匹配理论,在科学研究中做出了突出的贡献。 相似文献
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Wei Ren Tang Li Qiuzhi Qu Bin Wang Lin Li Desheng Lü Weibiao Chen Liang Liu 《国家科学评论(英文版)》2020,7(12):1828
Atomic clocks with cold atoms play important roles in the field of fundamental physics as well as primary frequency standards. Operating such cold atom clocks in space paves the way for further exploration in fundamental physics, for example dark matter and general relativity. We developed a space cold atom clock (SCAC), which was launched into orbit with the Space Lab TG-2 in 2016. Before it deorbited with TG-2 in 2019, the SCAC had been working continuously for almost 3 years. During the period in orbit, many scientific experiments and engineering tests were performed. In this article, we summarize the principle, development and in-orbit results. These works provide the basis for construction of a space-borne time-frequency system in deep space. 相似文献
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XIN Ling 《中国科学院院刊(英文版)》2009,23(2):118-121
On 14 January, 2009, CAS honored three foreign scientists for their lasting and fruitful contributions to the collaboration between CAS and the world： Akito Arima, president of the Japan Science Foundation, Yuen-Ron Shen, professor of physics with the University of California at Berkley, and Michel Che, catalyst expert and chair professor at Universite Pierre et Marie Curie. Their association with the Chinese scientific community can be dated back to some three decades ago. 相似文献
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The important role of ionized atoms and molecules in many aspects of physical and chemical phenomena is being increasingly recognized. Typical research areas are astrophysics and interstellar molecular syntheses; plasma physics and fusion research; aeronomy and effects of ultraviolet irradiation on high atmosphere constituents; ion-molecule reactions; mass spectrometry; fundamental research on structural problems; behaviour of excited species; quantum theory of molecular structure and chemical kinetics. This paper emphasises the role of the autoionization process and discusses some of its characteristics, as well as the experimental methods used for its study. 相似文献
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《中国科学院院刊(英文版)》2002,16(1)
1. Basic Research
Basic research has always been one of the major tasks of CAS. Over the more than 50 years since its founding, CAS has gradually branched out to cover many fundamental fields of the natural sciences, such as mathematics, physics, chemistry, mechanics,astronomy, space science, life science, geoscience and environmental science - with nearly 10,000 research professionals and 117 open laboratories (including 50 key State laboratories). At present, there are 29 research institutes (including observatories) covering such fields as physical science, mathematics, mechanics and astronomy; with 31 open laboratories (nine key State laboratories, four State laboratories and 18 CAS open laboratories). 相似文献
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Prof. Huang Kun is an internationally renowned specialist in solid state physics and semi-conductors. He is a CAS member and also a foreign member of the Swedish Academy of Sciences and a fellow of the Third World Academy of Sciences. He received China's 2001 Supreme Scientific and Technological Award on February,2002, for his lifetime achievements. 相似文献
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文章通过分析量子力学中量子态的本体论地位问题、量子场论中何谓基本粒子问题,以及量子引力理论中时间是否存在的问题,表明科学理论的内核是一些基本的形而上学预设。文章指出,哲学与物理学的关系,颇类似于数学与物理学的关系,因此在物理学和哲学之间建立更紧密的联盟,会有助于这些问题的澄清与解决。 相似文献
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《国家科学评论(英文版)》2014,(1)
Hall efect is a well-known electromagnetic phenomenon that has been widely applied in the semiconductor industry.he quantum Hall efect discovered in two-dimensional electronic systems under a strong magnetic ield provided new insights into condensed mater physics,especially the topological aspect of electronic states.he quantum anomalous Hall efect is a special kind of the quantum Hall efect that occurs without a magnetic ield.It has long been sought ater because its realization will signiicantly facilitate the studies and applications of the quantum Hall physics.In this paper,we review how the idea of the quantum anomalous Hall efect was developed and how the efect was inally experimentally realized in thin ilms of a magnetically doped topological insulator. 相似文献
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《中国科学院院刊(英文版)》2017,(2)
"Spooky action" triumphs in outer space: A joint team of CAS scientists reported in a cover article in Science the successful survival of quantum entanglement over a distance of1200+ km, and a violation of Bell Inequality. 相似文献