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Quantum walks on a programmable two-dimensional 62-qubit superconducting processor 期刊论文
Science, 2021
作者:  Ming Gong;  Shiyu Wang;  Chen Zha;  Ming-Cheng Chen;  He-Liang Huang;  Yulin Wu;  Qingling Zhu;  Youwei Zhao;  Shaowei Li;  Shaojun Guo;  Haoran Qian;  Yangsen Ye;  Fusheng Chen;  Chong Ying;  Jiale Yu;  Daojin Fan;  Dachao Wu;  Hong Su;  Hui Deng;  Hao Rong;  Kaili Zhang;  Sirui Cao;  Jin Lin;  Yu Xu;  Lihua Sun;  Cheng Guo;  Na Li;  Futian Liang;  V. M. Bastidas;  Kae Nemoto;  W. J. Munro;  Yong-Heng Huo;  Chao-Yang Lu;  Cheng-Zhi Peng;  Xiaobo Zhu;  Jian-Wei Pan
收藏  |  浏览/下载:76/0  |  提交时间:2021/06/07
Larger Sensitivity of Arctic Precipitation Phase to Aerosol than Greenhouse Gas forcing 期刊论文
Geophysical Research Letters, 2020
作者:  Shifeng Pan;  Tingfeng Dou;  Lei Lin;  Jiao Yang;  Feng Zhang;  Mingkeng Duan;  Chuanfeng Zhao;  Hong Liao;  Cunde Xiao
收藏  |  浏览/下载:25/0  |  提交时间:2020/11/24
Differentiation Between Nitrate Aerosol Formation Pathways in a Southeast Chinese City by Dual Isotope and Modeling Studies 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Xiao, Hong-Wei;  Zhu, Ren-Guo;  Pan, Yuan-Yuan;  Guo, Wei;  Zheng, Neng-Jian;  Liu, Yong-Hui;  Liu, Cheng;  Zhang, Zhong-Yi;  Wu, Jing-Feng;  Kang, Chang-An;  Luo, Li;  Xiao, Hua-Yun
收藏  |  浏览/下载:48/0  |  提交时间:2020/08/18
A map of object space in primate inferotemporal cortex 期刊论文
NATURE, 2020, 583 (7814) : 103-+
作者:  Wu, Huihui;  Li, Bosheng;  Iwakawa, Hiro-oki;  Pan, Yajie;  Tang, Xianli;  Ling-hu, Qianyan;  Liu, Yuelin;  Sheng, Shixin;  Feng, Li;  Zhang, Hong;  Zhang, Xinyan;  Tang, Zhonghua;  Xia, Xinli;  Zhai, Jixian;  Guo, Hongwei
收藏  |  浏览/下载:67/0  |  提交时间:2020/07/03

Primate inferotemporal cortex contains a coarse map of object space consisting of four networks, identified using functional imaging, electrophysiology and deep networks.


The inferotemporal (IT) cortex is responsible for object recognition, but it is unclear how the representation of visual objects is organized in this part of the brain. Areas that are selective for categories such as faces, bodies, and scenes have been found(1-5), but large parts of IT cortex lack any known specialization, raising the question of what general principle governs IT organization. Here we used functional MRI, microstimulation, electrophysiology, and deep networks to investigate the organization of macaque IT cortex. We built a low-dimensional object space to describe general objects using a feedforward deep neural network trained on object classification(6). Responses of IT cells to a large set of objects revealed that single IT cells project incoming objects onto specific axes of this space. Anatomically, cells were clustered into four networks according to the first two components of their preferred axes, forming a map of object space. This map was repeated across three hierarchical stages of increasing view invariance, and cells that comprised these maps collectively harboured sufficient coding capacity to approximately reconstruct objects. These results provide a unified picture of IT organization in which category-selective regions are part of a coarse map of object space whose dimensions can be extracted from a deep network.


  
The wide-binary origin of (2014) MU69-like Kuiper belt contact binaries (vol 31, pg 878, 2020) 期刊论文
NATURE, 2020, 582 (7811) : E2-E2
作者:  Wu, Huihui;  Li, Bosheng;  Iwakawa, Hiro-oki;  Pan, Yajie;  Tang, Xianli;  Ling-hu, Qianyan;  Liu, Yuelin;  Sheng, Shixin;  Feng, Li;  Zhang, Hong;  Zhang, Xinyan;  Tang, Zhonghua;  Xia, Xinli;  Zhai, Jixian;  Guo, Hongwei
收藏  |  浏览/下载:36/0  |  提交时间:2020/07/03
Accurate compound-specific C-14 dating of archaeological pottery vessels 期刊论文
NATURE, 2020, 580 (7804) : 506-+
作者:  Yin, Yafei;  Lu, J. Yuyang;  Zhang, Xuechun;  Shao, Wen;  Xu, Yanhui;  Li, Pan;  Hong, Yantao;  Cui, Li;  Shan, Ge;  Tian, Bin;  Zhang, Qiangfeng Cliff;  Shen, Xiaohua
收藏  |  浏览/下载:35/0  |  提交时间:2020/05/13

Pottery is one of the most commonly recovered artefacts from archaeological sites. Despite more than a century of relative dating based on typology and seriation(1), accurate dating of pottery using the radiocarbon dating method has proven extremely challenging owing to the limited survival of organic temper and unreliability of visible residues(2-4). Here we report a method to directly date archaeological pottery based on accelerator mass spectrometry analysis of C-14 in absorbed food residues using palmitic (C-16:0) and stearic (C-18:0) fatty acids purified by preparative gas chromatography(5-8). We present accurate compound-specific radiocarbon determinations of lipids extracted from pottery vessels, which were rigorously evaluated by comparison with dendrochronological dates(9,10) and inclusion in site and regional chronologies that contained previously determined radiocarbon dates on other materials(11-15). Notably, the compound-specific dates from each of the C-16:0 and C-18:0 fatty acids in pottery vessels provide an internal quality control of the results(6) and are entirely compatible with dates for other commonly dated materials. Accurate radiocarbon dating of pottery vessels can reveal: (1) the period of use of pottery  (2) the antiquity of organic residues, including when specific foodstuffs were exploited  (3) the chronology of sites in the absence of traditionally datable materials  and (4) direct verification of pottery typochronologies. Here we used the method to date the exploitation of dairy and carcass products in Neolithic vessels from Britain, Anatolia, central and western Europe, and Saharan Africa.


Using lipid residues absorbed in potsherds, the ages of pottery from various archaeological sites are determined and validated using sites for which the dates are well known from other methods.


  
Molecular markers of biomass burning and primary biological aerosols in urban Beijing: size distribution and seasonal variation 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (6) : 3623-3644
作者:  Xu, Shaofeng;  Ren, Lujie;  Lang, Yunchao;  Hou, Shengjie;  Ren, Hong;  Wei, Lianfang;  Wu, Libin;  Deng, Junjun;  Hu, Wei;  Pan, Xiaole;  Sun, Yele;  Wang, Zifa;  Su, Hang;  Cheng, Yafang;  Fu, Pingqing
收藏  |  浏览/下载:29/0  |  提交时间:2020/07/02
Intraplate volcanism originating from upwelling hydrous mantle transition zone 期刊论文
NATURE, 2020
作者:  Calabrese, Claudia;  Davidson, Natalie R.;  Demircioglu, Deniz;  Fonseca, Nuno A.;  He, Yao;  Kahles, Andre;  Kjong-Van Lehmann;  Liu, Fenglin;  Shiraishi, Yuichi;  Soulette, Cameron M.;  Urban, Lara;  Greger, Liliana;  Li, Siliang;  Liu, Dongbing;  Perry, Marc D.;  Xiang, Qian;  Zhang, Fan;  Zhang, Junjun;  Bailey, Peter;  Erkek, Serap;  Hoadley, Katherine A.;  Hou, Yong;  Huska, Matthew R.;  Kilpinen, Helena;  Korbel, Jan O.;  Marin, Maximillian G.;  Markowski, Julia;  Nandi, Tannistha;  Pan-Hammarstrom, Qiang;  Pedamallu, Chandra Sekhar;  Siebert, Reiner;  Stark, Stefan G.;  Su, Hong;  Tan, Patrick;  Waszak, Sebastian M.;  Yung, Christina;  Zhu, Shida;  Awadalla, Philip;  Creighton, Chad J.;  Meyerson, Matthew;  Ouellette, B. F. Francis;  Wu, Kui;  Yang, Huanming;  Brazma, Alvis;  Brooks, Angela N.;  Goke, Jonathan;  Raetsch, Gunnar;  Schwarz, Roland F.;  Stegle, Oliver;  Zhang, Zemin
收藏  |  浏览/下载:120/0  |  提交时间:2020/05/13

Most magmatism occurring on Earth is conventionally attributed to passive mantle upwelling at mid-ocean ridges, to slab devolatilization at subduction zones, or to mantle plumes. However, the widespread Cenozoic intraplate volcanism in northeast China(1-3) and the young petit-spot volcanoes(4-7) offshore of the Japan Trench cannot readily be associated with any of these mechanisms. In addition, the mantle beneath these types of volcanism is characterized by zones of anomalously low seismic velocity above and below the transition zone(8-12) (a mantle level located at depths between 410 and 660 kilometres). A comprehensive interpretation of these phenomena is lacking. Here we show that most (or possibly all) of the intraplate and petit-spot volcanism and low-velocity zones around the Japanese subduction zone can be explained by the Cenozoic interaction of the subducting Pacific slab with a hydrous mantle transition zone. Numerical modelling indicates that 0.2 to 0.3 weight per cent of water dissolved in mantle minerals that are driven out from the transition zone in response to subduction and retreat of a tectonic plate is sufficient to reproduce the observations. This suggests that a critical amount of water may have accumulated in the transition zone around this subduction zone, as well as in others of the Tethyan tectonic belt(13) that are characterized by intraplate or petit-spot volcanism and low-velocity zones in the underlying mantle.


The widespread intraplate volcanism in northeast China and the unusual '  petit-spot'  volcanoes offshore Japan could have resulted from the interaction of the subducting Pacific slab with a hydrous mantle transition zone.


  
Evaluation and uncertainty investigation of the NO2, CO and NH3 modeling over China under the framework of MICS-Asia III 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (1) : 181-202
作者:  Kong, Lei;  Tang, Xiao;  Zhu, Jiang;  Wang, Zifa;  Fu, Joshua S.;  Wang, Xuemei;  Itahashi, Syuichi;  Yamaji, Kazuyo;  Nagashima, Tatsuya;  Lee, Hyo-Jung;  Kim, Cheol-Hee;  Lin, Chuan-Yao;  Chen, Lei;  Zhang, Meigen;  Tao, Zhining;  Li, Jie;  Kajino, Mizuo;  Liao, Hong;  Wang, Zhe;  Sudo, Kengo;  Wang, Yuesi;  Pan, Yuepeng;  Tang, Guiqian;  Li, Meng;  Wu, Qizhong;  Ge, Baozhu;  Carmichael, Gregory R.
收藏  |  浏览/下载:34/0  |  提交时间:2020/07/02
Large contributions of biogenic and anthropogenic sources to fine organic aerosols in Tianjin, North China 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (1) : 117-137
作者:  Fan, Yanbing;  Liu, Cong-Qiang;  Li, Linjie;  Ren, Lujie;  Ren, Hong;  Zhang, Zhimin;  Li, Qinkai;  Wang, Shuang;  Hu, Wei;  Deng, Junjun;  Wu, Libin;  Zhong, Shujun;  Zhao, Yue;  Pavuluri, Chandra Mouli;  Li, Xiaodong;  Pan, Xiaole;  Sun, Yele;  Wang, Zifa;  Kawamura, Kimitaka;  Shi, Zongbo;  Fu, Pingqing
收藏  |  浏览/下载:41/0  |  提交时间:2020/07/02