SCPMA速递|《中国科学：物理学 力学 天文学》英文版2021年第10期

Cover Story

Optimization is the core of various machine learning models. As the classical optimization complexity has a linear relationship with the number of variables, the computation resources are pushed to their limits, especially when tackling high-dimensional machine learning problems, thus making quantum optimization a research focus in recent years. Gao et al. from Tsinghua University and Beijing Academy of Quantum Information Science reported a quantum Newton algorithm. It features a computational complexity that is logarithmic on variable dimensions, which provides an exponential boost compared with the classical method. This algorithm also converges much faster than existing quantum gradient algorithms, particularly in solving non-linear equations. This cover illustrates the faster convergency of quantum Newton algorithm (red line) than that of quantum gradient algorithm (white line) (See the article (No. 100311) by Pan Gao et al.).

TABLE OF CONTENT

Editor's Focus

Editorial

Hunting the doubly charmed baryon with strangeness

RongGen Cai

Sci. China-Phys. Mech. Astron. 64(10), 101061 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1759-3

Article

Search for the doubly charmed baryon Ω_cc⁺

LHCb Collaboration
Sci. China-Phys. Mech. Astron. 64(10), 101062 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1742-7

Editorial

Nodeless superconductivity in a vanadium kagome metal

Hai-Qing Lin
Sci. China-Phys. Mech. Astron. 64(10), 107461 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1763-4

Article

Nodeless superconductivity in the kagome metal CsV3Sb5

Weiyin Duan, Zhiyong Nie, Shuaishuai Luo, Fanghang Yu, Brenden R. Ortiz, Lichang Yin, Hang Su, Feng Du, An Wang, Ye Chen, Xin Lu, Jianjun Ying, Stephen D. Wilson, Xianhui Chen, Yu Song, and Huiqiu Yuan

Sci. China-Phys. Mech. Astron. 64(10), 107462 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1747-7

Research Highlight

Superconducting gap opens fully in the newly found topological kagome metal CsV3Sb5

Hai-Hu Wen

Sci. China-Phys. Mech. Astron. 64(10), 107463 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1754-y

Invited Review

Condensed Matter Physics

Novel two-dimensional transition metal chalcogenides created by epitaxial growth

Hong-Liang Lu, Yu-Yang Zhang, Xiao Lin, and Hong-Jun Gao

Sci. China-Phys. Mech. Astron. 64(10), 106801 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1746-5

Review

Condensed Matter Physics

Experimental review on Majorana zero-modes in hybrid nanowires

Ji-Bang Fu, Bin Li, Xin-Fang Zhang, Guang-Zheng Yu, Guang-Yao Huang, and Ming-Tang Deng

Sci. China-Phys. Mech. Astron. 64(10), 107001 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1737-4

Article

Quantum Physics

Quantum second-order optimization algorithm for general polynomials

Pan Gao, Keren Li, Shijie Wei, and Gui-Lu Long

Sci. China-Phys. Mech. Astron. 64(10), 100311 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1725-9

Quantum Physics

Quantum federated learning through blind quantum computing

Weikang Li, Sirui Lu, and Dong-Ling Deng

Sci. China-Phys. Mech. Astron. 64(10), 100312 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1753-3

Optics

Generation and control of dynamically tunable circular Pearcey beams with annular spiral-zone phase

KaiHui Chen, HuiXin Qiu, You Wu, ZeJia Lin, HaiQi Huang, LingLing Shui, DongMei Deng, HongZhan Liu, and ZhiGang Chen

Sci. China-Phys. Mech. Astron. 64(10), 104211 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1767-5

Condensed Matter Physics

Optical detection of quantum geometric tensor in intrinsic semiconductors

Zhi Li, Shengli Zhang, Takami Tohyama, Xiufeng Song, Yu Gu, Toshiaki Iitaka, Haibin Su, and Haibo Zeng

Sci. China-Phys. Mech. Astron. 64(10), 107211 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1750-2

Condensed Matter Physics

Facile synthesis of two-dimensional MoS2/WS2 lateral heterostructures with controllable core/shell size ratio by a one-step chemical vapor deposition method

Baofan Sun, Jiajun Chen, Xinyi Zhou, Min Liu, Yaping Wu, Yuanzheng Xia, Xu Li, Zhiming Wu, and Junyong Kang

Sci. China-Phys. Mech. Astron. 64(10), 107311 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1745-6

Condensed Matter Physics

Superconductivity and strong spin-orbit coupling in a new noncentrosymmetric compound ThIrP

GuoRui Xiao, QinQing Zhu, YanWei Cui, WuZhang Yang, BaiZhuo Li, SiQi Wu, Guang-Han Cao, and Zhi Ren

Sci. China-Phys. Mech. Astron. 64(10), 107411 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1731-3

Biophysics

Ultrasound beam shift induced by short-beaked common dolphin's (Delphinus delphis) tissues as an attenuating gradient material

Chuang Zhang, Zhongchang Song, Steven W. Thornton, Erqian Dong, Peizheng Cao, Feng Ye, Xianyan Wang, and Yu Zhang

Sci. China-Phys. Mech. Astron. 64(10), 108711 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1744-x

Biophysics

Cis-interaction of ligands on a supported lipid bilayer affects their binding to cell adhesion receptors

Long Li, Jinglei Hu, Huaping Wu, and Fan Song

Sci. China-Phys. Mech. Astron. 64(10), 108712 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1752-0

Research Highlight

Quantum Physics

Quantum enhanced convolutional neural networks for NISQ computers

Dong-Ling Deng

Sci. China-Phys. Mech. Astron. 64(10), 100331 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1758-0

Quantum Physics

Exponential speedup of quantum Newton optimization algorithm for general polynomials

Heng Fan

Sci. China-Phys. Mech. Astron. 64(10), 100332 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1769-1

News & Views

Astrophysics

LHAASO: A PeVatrons explorer

Felix A. Aharonian

Sci. China-Phys. Mech. Astron. 64(10), 109531 (2021)

http://engine.scichina.com/doi/10.1007/s11433-021-1751-8

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