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拓扑量子计算可有效抵抗杂质、相互作用等的扰动，从而解决量子退相干与纠错的问题，实现容错量子计算。本征拓扑超导材料的超导态具有非常规的超导能隙结构，在晶体材料的自然边界可产生马约拉纳零能模式，是实现拓扑量子计算的主要方案之一。相比其他方案，该方案从原理上可回避诸如两种材料的晶格不匹配对拓扑保护的影响以及磁场/磁性杂质引入的其他低能态等问题，是当前凝聚态物理研究的前沿方向。然而，由于马约拉纳费米子的自...
中国科学院研究揭示Half-Heuslar合金YPtBi的非常规超导电性（图）
合金 超导电性 拓扑量子计算
2023/8/16
拓扑量子计算可有效抵抗杂质、相互作用等的扰动，从而解决量子退相干与纠错的问题，实现容错量子计算。本征拓扑超导材料的超导态具有非常规的超导能隙结构，在晶体材料的自然边界可产生马约拉纳零能模式，是实现拓扑量子计算的主要方案之一。相比其他方案，该方案从原理上可回避诸如两种材料的晶格不匹配对拓扑保护的影响以及磁场/磁性杂质引入的其他低能态等问题，是当前凝聚态物理研究的前沿方向。然而，由于马约拉纳费米子的自...
拓扑量子计算可以有效抵抗杂质、相互作用等的扰动，从而解决量子退相干与纠错的问题，实现容错量子计算，因此引起学界广泛关注。其中，本征拓扑超导材料的超导态具有非常规的超导能隙结构，在晶体材料的自然边界即可产生马约拉纳零能模式，是实现拓扑量子计算的主要方案之一。相比于其他方案，从原理上可以回避诸如两种材料的晶格不匹配对拓扑保护的影响，和磁场/磁性杂质引入的其它低能态等问题，是目前凝聚态物理研究的前沿方向...
In a first-of-its-kind analysis, Cornell researchers and partners at the Clinton Health Access Initiative found that pharmaceutical producers could reduce their environmental impact by roughly half by...
Human-driven climate change only half the picture for krill
krill climate change natural variability ecological system
2021/8/4
New research about the fate of krill -- one of the most abundant species on Earth -- during this century has important implications for not only the Antarctic food web, but for the largest commercial ...
Soot may be half the problem when it comes to cookstoves（图）
Soot half problem comes cookstoves
2020/4/26
The telltale signature of a cookstove, commonly used to prepare food or provide heat by burning wood, charcoal, animal dung or crop residue, is the thick, sooty smoke that rises from the flames. Its r...
p电子诱导的铁磁性和半金属性（half-metallicity）（图）
p电子诱导 铁磁性 半金属性
2020/4/9
中国科学院物理研究所/北京凝聚态物理国家研究中心先进材料与结构分析实验室A02组博士生邓俊、郭建刚副研究员和陈小龙研究员分析了AO2 (A= K, Rb, Cs)中O2-二聚体的磁性相互作用规律，提出了改变化合物中层与层之间O2-二聚体的排布方式来调控磁性，从而诱导长程铁磁序的学术思想，如图1所示。利用第一性原理计算结合结构搜索的方法，他们筛选出了具有铁磁性的三元半金属(half-metal)化合...
近日，固体所物质计算科学研究室张永胜研究员课题组在表征half-Heusler材料中rattling效应对热导率影响的研究取得新进展，相关结果以“Characterization of rattling in relation to thermal conductivity: Ordered half-Heusler semiconductors”为题发表在《物理评论B》 上。
More than half of world's fresh water supply warming rapidly（图）
More than half of world fresh water warming rapidly
2017/11/23
More than half of the world's fresh water supply is warming rapidly, according to an NSF- and NASA-funded study.Using satellite data and ground measurements collected from 235 lakes on six continents ...
SPECTACLE CYCLES WITH COEFFICIENTS AND MODULAR FORMS OF HALF-INTEGRAL WEIGHT
SPECTACLE CYCLES COEFFICIENTS AND MODULAR FORMS HALF-INTEGRAL WEIGHT
2015/10/14
In this paper we present a geometric way to extend the Shintani lift from even weight cusp forms for congruence subgroups to arbitrary modular forms, in particular Eisenstein series. This is part of o...
A strong form of Arnold diffusion for two and a half degrees of freedom
Arnold diffusion two and a half degrees of freedom
2015/9/25
A strong form of Arnold diffusion for two and a half degrees of freedom.
Breakthrough in particle control creates special half-vortex rotation
creates special half-vortex rotation
2015/3/18
Researchers at the Universities of Strathclyde and Pittsburgh, and Princeton University, conducted a test in which they were able to arrange the particles into a ‘ring geometry’ form in a solid-state ...
In Ivorian school-age children, infection with hookworm does not reduce dietary iron absorption or systemic iron utilization, whereas afebrile Plasmodium falciparum infection reduces iron absorption by half
Cô te d’Ivoire afebrile Plasmodium hookworm Schistosoma haematobium inflammation hepcidin stable isotopes iron absorption anemia
2018/12/24
Background: In sub-Saharan Africa, parasitic diseases and low bioavailable iron intake are major causes of anemia. Anemia results from inflammation, preventing iron recycling and decreasing dietary ir...
Study Unveils New Half-Light Half-Matter Quantum Particles
Half-Light Half-Matter Quantum Particles
2015/1/8
Prospects of developing computing and communication technologies based on quantum properties of light and matter may have taken a major step forward thanks to research by City College of New York ...
AzTEC half square degree survey of the SHADES fields - I. Maps, catalogues and source counts
hydrodynamical models galaxy formation
2014/12/20
We present the first results from the largest deep extragalactic mm-wavelength survey undertaken to date. These results are derived from maps covering over 0.7 deg2, made at λ= 1.1 mm, using the AzTEC...